The USA F-Class National Championships are underway right now in Lodi, Wisconsin. The Mid-Range Championships run August 10-13, 2024, while the Long Range F-Class Championships start on the 14th and run through August 17, 2024. With the Mid-Range event underway today, as you read this, top F-Open and F-TR shooters are aiming their rifles at 600-yard targets. VIEW Nationals Match Program HERE.
2024 NRA F-CLASS NATIONAL CHAMPIONSHIPS
NRA F-CLASS MID-RANGE NATIONAL CHAMPIONSHIP AUGUST 10-13, 2024
NRA F-CLASS LONG RANGE NATIONAL CHAMPIONSHIP AUGUST 14-17, 2024
Event hosted by Winnequah Gun Club and sponsored by Brux Barrels, Criterion Barrels, Krieger Barrels, and Silver Mountain Target.
There will be two divisions at The F-Class National Championships: F-Open and F-TR. In F-Open the rifles can shoot any cartridge type (up to .35 caliber) and have a 22-lb (10kg) weight limit. A front rest is allowed, and most shooters favor a rest with a joystick control.
In F-TR, two cartridge types are allowed: .223 Remington (5.56×45) or .308 Winchester (7.62×51 NATO), with no restrictions on bullet weight. F-TR rifles are fired off a bipod attached to the rifle’s fore-end. The F-TR weight limit is 8.25 kilograms, or about 18 pounds. This includes the weight of the rifle, scope, and bipod. A sandbag can be used under the rear of the stock. Because of the lower weight limit, which includes the bipod, F-TR stocks tend to be much slimmer and lighter than F-Open stocks which have wide fore-arms to work with the front rests.
F-Open Cartridge Options — Modern Magnum Options
For Today’s Sunday Gunday Story we feature an article about F-Open chamberings by respected rifle builder and past F-Open National Champion Emil Kovan. In this article, Emil reviews some of the new magnum cartridge options that are being employed by F-Open competitors. Many shooters are still using the .284 Winchester (or variants), but an increasing number are shooting 7mm and .30-caliber cartridges based on magnum cartridge types. The 7mm is probably still the favored caliber for F-Open because 7mm bullets offer great ballistics with less recoil than heavier .30-caliber projectiles.
Cartridges for F-Class Part II — Rise of the Magnums
A few seasons back, I wrote an article on cartridge choices for F-Class shooters. CLICK HERE to READ ARTICLE. Since the first article I wrote, F-Class has continued to grow, and push the limits of precision and accuracy. While the .284 Win and its variants are still the most common F-Open cartridges, more and more top F-Open shooters are using magnum cartridge types to win competitions and set new records. In this article, I will list some of the advantages and disadvantages of the most commonly used magnums, and will cover the strengths and weaknesses of each one of them.
Performance factors we will consider for magnum F-Open cartridges include:
1. Equal or better accuracy than standard chambers
2. Better ballistic performance
3. Enhanced case life
4. Barrel life
Accuracy Potential of Magnum Cartridges for F-0pen Competition
John Meyrs has won four National Mid-Range Championships using the .300 WSM. Tim Vought used the same cartridge to win two Mid-Range Nationals and used a 7-6.5 PRC to win the long range Nationals. Standard .437″ case head (.308 Win head size) cartridges still have more Nationals wins overall, but the magnums are quickly catching up, and my prediction is that magnums will dominate soon.
The accuracy and precision potential of magnums used in F-Class (.300 WSM, 7-270 WSM, 7mm RSAUM or “7 SAUM”, 7-6.5 PRC) is better than non-magnum cartridges because their shapes are closer to the ideal “fat/short” body associated with wider nodes and extreme precision. For example a .300 WSM is proportionally much closer to the 6 PPC, 6 Dasher, and 6 BRA than is the .284 Winchester.
Stunning F-Open rifle with SEB Mini front rest with Blake Machine accessories.
The first thing that comes to mind when magnums are discussed is power and speed. In my humble opinion most shooters are missing out on accuracy because they push their magnums right past the most stable and accurate nodes. Recently I met my good friend from the Army Marksmanship Unit, SFC Brandon Green, at a shooting competition. We discussed the latest and greatest in long-range shooting. I knew that the USAMU had switched from 6.5-284 Norma to 7mm RSAUM several years back, but didn’t know what load they are currently using. Brandon told me that the load featured Berger 180gr hybrids in Nosler cases at 2820 fps. We all know that the 7 SAUM is capable of much higher speeds, “but at around 2820 fps the load/rifle combo will hammer the X-Ring anywhere under any conditions” SFC Green said.
F-Open rifles on the firing line at the Ben Avery Shooting Facility in Phoenix, Arizona.
Most shooters jump right into magnum territory velocities when testing, missing out on better precision at standard chamber speeds. For example, my 30 KMR can easily reach 2880 fps with 230gr Hybrids, and it actually shoots pretty good. But the same rifle at around 2770 fps will absolutely hammer the X-Ring in any condition anywhere. When it’s all said and done, F-Class is a long-range shooting competition at a known distance which requires extreme precision and accuracy. It is not a speed race.
IMPORTANT — Case-Head Dimensions Do Make a Difference
Magnums, when shot within reasonable velocities, on average will give better case life due to the bigger case + lower pressure and “more meat” in the case-head area. For example a 7 SAUM case will outlast a .284 Win case when both are loaded to around 2900 fps.
Disadvantages of Magnum F-Open Cartridges
Perhaps the biggest disadvantage linked to magnums is recoil. Some people complain about developing the “gun shy” syndrome after shooting a magnum for a while. Muzzle blast and recoil are significantly more pronounced in magnums, but that can be easily managed with a properly-built rifle equipped with appropriate recoil mitigation hardware such as RAD and the various butt plates.
F-Open rifle equipped with recoil reduction buttpad system.
Barrel Life — “Barrels are Expendable Components”
It is true that certain magnums can torch a barrel in just a few hundred rounds. But the same is true when improving a 6BR to 6 Dasher for example — barrel life might be reduced significantly. More powder = more heat = diminished accuracy after a certain round count. In my experience, a F-Open magnum’s barrel life is very close to high-performance standard cartridges such as the .284 Shehane or .284 KMR. I “retire” my barrels around 1200 rounds regardless of the cartridge being a magnum or not. After that many rounds most barrels will still shoot OK but will copper up, and you will start seeing those unexplained vertical 9s. The bottom line is this, barrels are expendable components very much like brass. You can’t get the performance of .300 WSM and the barrel life of the .308 Win at the same time. If you want to race in NASCAR, fuel mileage should not be the top priority!
Top Magnum Cartridge Types Used in F-Class Open Division
.300 Winchester Short Magnum
The .300 WSM (Winchester Short Magnum) tops the popularity chart in F-Class Open division. It has been used to win numerous National championships and has set many National records. The .300 WSM’s short/fat case shape, with minimal body taper and 35-degree shoulder, contribute greatly to its outstanding performance at long range. Components are readily available as well. Best brass remains to be Norma, although ADG is just as good and some would even say better, but it is more expensive and harder to get at this time.
The .300 WSM has been described as a “super-sized Dasher”.
For the .30-cal magnums, in my opinion, the best bullets by far are made by Berger. If your rifle does not shoot 215gr, 230gr hybrids, or 210gr VLDs well, you likely have a rifle problem, NOT a bullet issue. My “go to” bullet is the Berger 230gr Hybrid. The 215-grainer is a close second, followed by Berger’s accurate but ballistically inferior 210gr VLD, which I use in calm and steady conditions.
Top powders for the .300 WSM are Hodgdon H4831SC and H4350. I know there are many more powders suitable for the .300 WSM cartridge, but none I have used can match Hodgdon’s consistency when shot in different geographical locations and weather conditions.
7mm Remington Short Action Ultra Magnum
The 7mm RSAUM (aka 7 SAUM) used to be the darling of F-Open. Its case capacity and shape are about perfect for launching 180gr pills with great ballistics and precision. Its popularity faded a little, due to the lack of good brass, and the rise of the improved versions of the .284 Win which can almost match the RSAUM performance. Norma still makes 7 RSAUM brass which is pretty good but little on the soft side and hard to find. ADG is arguably producing the best RSAUM brass right now. It is very uniform, reasonably priced, and seems to hold up very well even when pushed hard. The best bullets are again made by Berger, and those are the 180gr hybrid, 184gr hybrid, and 180gr VLD. Best powders are H4831sc, H4350, and Alliant Reloder 16 and Reloder 23.
7-270 WSM, 7-300 WSM, and 7 WSM
The first two are pretty much identical, the only difference being that the 7-270 WSM is necked up .270 WSM while the 7-300 WSM is a .300 WSM necked down to 7mm. I personally prefer the first one since necking-up is easier than necking-down (with fewer doughnut issues).
The WSM case-based 7mms will give you great velocity flexibility as well as superb precision when tuned well. In the 2013 world championship in Raton NM, I was scoring for a gentleman from Canada who was shooting 7-270 WSM. The wind was blowing pretty hard that day. On one of his shots, just before he pulled the trigger the wind gusted. I remember thinking that’s going to be an 8 for sure. The target came up a line 10! I asked him after the match what he was shooting, and he replied 180s at 3100fps. Although capable of such speeds, I think that potentially better and more consistent accuracy can be achieved at much slower speeds. The best powders and bullets are again Hodgdon and Berger respectively. Best cases are made by Norma and ADG, with Winchester being a third option.
7-6.5 PRC — Popular Wildcat
Last but not least on our chart is the 7-6.5 PRC. This particular cartridge is actually a wildcat. It is a 6.5 PRC necked up to 7mm. It is pretty much identical to the 7 RSAUM with the only differences being a shorter neck and .01″-narrower body. Currently the 7-6.5 PRC is the most requested cartridge that I offer when building new rifles. It seems to fill the gap between the .284 Win and the larger magnums very nicely. It is capable of reaching 3000fps but most shooters are getting their best results around 2920-2950 fps. The biggest advantage of this wildcat is brass. Lapua makes super high-quality, readily-available 6.5 PRC brass. Best powders are H4831sc, H4350, Reloder 16, and Vihtavuori VV 555. The best bullet in my opinion is the 180gr Berger. I am yet to hear about a better-performing bullet in this chamber.
Conclusion In conclusion, magnums are not perfect but their performance advantages should be very seriously considered when building a rifle for long-range F-Class. In part three, I will list the most common wildcat magnums, and present the KMR magnums which will make you (if you haven’t already) buy a magnum action and get a magnum build for sure!
– 2014 F-Class Open National Champion
– 2015 F-Class Open National Championship, Silver Medal
– F-Class Open National Championship Teams, 2015, 2014, 2013, Shooting Team Member
– Over 15 wins in Regional and State Championships in Palma, F-TR, F-Open
– 2013 U.S. National Team Member
– 2023 F-Open Gold Medal Team USA Member, 2023 World Championship in South Africa
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Big news — Lapua will be releasing 6mm GT and .300 WSM cartridge brass in 2024! Lapua has announced the addition of two major additions to its brass lineup. In spring, Lapua will start shipping .300 Winchester Short Magnum (WSM) cartridge cases. And, in the fall of 2024, Lapua promises to offer 6mm GT brass through authorized Lapua retailers.
Lapua 6mm GT (6GT) Brass
Lapua’s new 6mm GT brass promises to be a big hit with PRS/NRL shooters and varminters who want a bit more capacity than the 6mmBR case. The 6mm GT (aka 6GT) cartridge was conceived as a “bigger Dasher” for PRS/NRL competition. The 6mm GT’s creators wanted 6mm Dasher accuracy and moderate recoil delivered via a cartridge with a slightly longer case body for better mag-feeding, longer neck for seating flexibility, and more moderate pressures. So far the 6GT has performed very well in PRS/NRL competition. With the upcoming availability of premium Lapua-brand 6mm GT brass, we may also see a greater adoption of the 6GT in mid-range benchrest competition. We expect varminters may adopt the cartridge also, both in 6mm and necked down to .22 caliber.
Lapua’s Vice President of Sales & Marketing, Jarkko Aro stated, “Competitors shooting PRS, and similar long-range disciplines, have urged us to develop a 6mm GT case with unmatched quality and superior cartridge geometry to those currently offered in the marketplace. We’re confident we’ve exceeded their demands by collaborating with original cartridge developers, George Gardner and Tom Jacobs.”
Lapua .300 Winchester Short Magnum (WSM) Brass
Available in spring of 2024, Lapua will offer a superior-quality .300 WSM case through authorized retailers. Lapua cartridge cases are known for their superb quality, consistency, and longevity. Lapua brass cases are the #1 component choice of competitive shooters in most accuracy disciplines. Lapua uses only the highest-quality materials and manufacturing processes to satisfy the demands of reloaders who seek the highest levels of precision from their .300 WSM firearm platforms.
This product release is significant news for hunters and F-Open shooters. The .300 WSM has been an effective F-Open cartridge, both in .30-caliber and necked down to 7mm. With the availability of Lapua-brand .300 WSM brass later this spring, we expect that more F-Open shooters will employ a match cartridge based on this brass.
Lapua Sales & Marketing Manager, Erkki Seikkula stated, “.300 WSM reloading enthusiasts who insist on using the best components now have Lapua cartridge cases available for their long-range target rifles and custom hunting guns. From all of us at Lapua, thank you for seeking out our components to fulfill your precision reloading needs.” Order now for delivery in spring 2024 from authorized Lapua retailers.
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Since its introduction in 2001, the .300 Winchester Short Magnum (.300 WSM), has proven very popular for hunting and long-range competition. The case has ample capacity to drive the heavy .30-caliber bullets, and with proper case prep and annealing, the WSM is capable of outstanding accuracy. When Nebraskan Greg Anderson decided to build his “ultimate long-range hunter”, he selected the .300 WSM for its accuracy and its ability to drop large game at long distances. Teaming up with Chris Matthews of LongShot Rifles, Greg developed an impressive long-range hunting rig, with high-tech components to reduce weight. The 26″ barrel is a carbon-wrapped composite over a Rock Creek stainless blank. The carbon technology saved about 3 pounds over an all-steel barrel of similar length/contour.
The Manners Composite stock also features carbon fiber construction for stiffness and reduced weight. Greg’s carbon/carbon rifle tips the scales at just 10.8 pounds, including scope and bipod. A conventional rig could easily weigh 15 pounds or more. Greg’s carbon hunter has proven accurate as well as innovative. With 175gr Sierra MKs, the gun shoots well under 1/2-MOA out to 600 yards and beyond.
The Ideal Spot and Stalk Rifle
by Greg Anderson
The purpose of this project was to create a hunting rifle that would be inherently accurate at long range and have an acceptable weight for hunting in rough country. I researched the question of overall weight with several gunsmiths. The smiths confirmed that while fat-contour barrels could deliver improved accuracy, there was a price to pay and a lot more weight. With a heavy barrel, the finished rifle would be most likely weigh about 15 pounds. That’s more than I wanted to haul around in the field. To reduce barrel weight, the suggested “traditional” solutions were fluting, which would reduce barrel weight by at least one-half pound, or going with a smaller diameter barrel.
The Quest for Reduced Weight without Accuracy Loss
Fluting didn’t promise enough weight savings, and a slim, sporter barrel probably wasn’t going to deliver the kind of consistent accuracy I wanted (particularly as the barrel heated up). Accordingly, I decided to “think outside the box”. My research on lightweight barrel options lead me to Advanced Barrel Systems, (ABS) a company in Lincoln, Nebraska that once produced custom carbon-wrapped barrels. ABS President Mike Degerness could wrap a barrel to virtually any shape and diameter, allowing great stiffness even with a huge reduction in barrel weight. As the “core” for his carbon-wrapped barrels, Mike recommends a cut-rifled blank made by any of the quality cut-barrel makers. [NOTE: ABS is not taking orders at this time. You can now get excellent carbon-wrapped barrels from Proof Research].
Significant Weight Saving with Carbon
How much weight can you save with a carbon-wrapped barrel? Well a 24-inch, #7 contour ABS carbon-wrapped barrel will weigh about 2.5 pounds compared to about 5.5 pounds for a steel barrel of the same length and contour. So, this means that you can put a fat, stiff competition-contour barrel on your hunting rifle and save over half the barrel weight compared to an all-steel barrel. Saving three pounds is a blessing when you’re carrying the rifle all day long in the field. I placed an order for a 30-caliber Rock Creek barrel blank with an 1:11.25″ twist and a finished length of 26″. Mike wrapped the barrel and finished it to an M24 contour.
Carbon Can Also Improve Barrel Vibration Damping
One interesting benefit of carbon barrel-wrapping is that the carbon components have a vibration-dampening effect. According to ABS, the extreme rigidity of the finished composite barrel dampens the vibration nodes of the barrel making it shoot like a plain steel barrel of much greater mass. Carbon fiber has a high modulus of elasticity that has the effect of lowering the amplitude of the vibration of the barrel when fired. This is what makes the ABS barrels perform so well, according to Mike.
Impressive Accuracy For a Hunting Rifle
Looking at the targets below, one may ask, “Does the rifle always shoot this well?” The answer, not surprisingly, is: “it depends on the trigger-puller”. The rifle is capable of outstanding accuracy. But it took some time and effort for me to develop the skills required to shoot up to the rifle’s inherent accuracy. I nearly always practice prone from bipod. Initially, I was getting horizontal stringing until I changed my grip and learned to be more consistent from shot to shot. Shooting a heavy-recoiling .30-caliber rifle from the ground is not the same as shooting a .223 Rem from the bench.
3-Shot Group at 200 yards | 6-Shot Group at 500 Yards
Completing the Project Build
To smith the rifle, I selected Chris Matthews of LongShot Rifles, LLC because of his expertise with the WSM cartridges and long-range shooting equipment. Because cost was a factor, we decided to use a donor Remington long action that had been used on a Remington 7mm magnum. Chris trued the action and we had Dave Kiff from Pacific Tool & Gauge grind us a bolt to fit the action more perfectly. Chris chambered the Rock barrel and installed a .300 Badger recoil lug.
Carbon-Reinforced Hunting Stock from Tom Manners
Being a fan of carbon fiber technology, I selected an MCS-T stock from Manners Composite Stocks. These stocks have an extremely high strength-to-weight ratio and the high comb of the MCS-T gave an almost perfect alignment with the scope. The finished rifle was topped off with a Leupold 4.5-14x40mm LR scope equipped with M1 windage and elevation turrets. A Harris bipod completed the package. All up, including scope, steel rings, and bipod, my .300 WSM rifle with 26″ barrel weighs 10.8 pounds.
Load Development for Accuracy
I developed a load using 63.0 grains of H4350, 175gr Sierra Match Kings with Federal 210M primers in Winchester-brand brass. This load gives 2960 FPS out of my rifle. The load would shoot sub-MOA from bipod from 100 yards to 600 yards and was adopted as the “go to” load. I have also tried the 208gr Hornady A-Max in this gun. The A-Maxs shot well but the Sierras work well for everything (paper punching and hunting) so the 175gr SMK is my bullet of choice.
Brass Prep and Annealing Are Very Important
The Winchester-brand brass is good, but you have to prep it thoroughly if you want good results. My brass prep consisted of turning the necks, de-burring the flash holes (inside and out), and chamfering the case necks. Using a Sinclair neck-turning tool, I turn the necks to .0135″ per side. That provides a complete clean-up of the necks, which run about .015″ neck-wall thickness out of the box.
One thing I’ve learned to do is anneal the brass every 3-4 firings. I started to do that after I noticed that the force required to seat bullets became inconsistent after just a few loading cycles. I also experienced flyers that were going out of the group for no apparent reason. Annealing the cases every 3-4 firings has eliminated most of the unexplained flyers and annealing has also made bullet seating much, much more consistent. I’ve also noticed a significant improvement in my groups at 500 and 600 yards now that I anneal regularly. Group sizes at 600 yards can be as much as 2″ smaller with annealed brass than with un-annealed, work-hardened brass.
Greg Anderson was successful with his .300 WSM on his very first hunt, dropping a nice buck at 364 yards. Chris reports: This was on some private land in Nebraska. As daylight faded… there were a couple of bucks, but one looked to be the best of the lot. The buck gave me a broadside shot ranged at 364 yards. I settled behind the scope and took one shot. It hit right where I aimed and the buck just folded.”
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A few seasons back, I wrote an article on cartridge choices for F-Class shooters. CLICK HERE to READ ARTICLE. Since the first article I wrote, F-Class has continued to grow, and push the limits of precision and accuracy. While the .284 Win and its variants are still the most common F-Open cartridges, more and more top F-Open shooters are using magnum cartridge types to win competitions and set new records. In this article, I will list some of the advantages and disadvantages of the most commonly used magnums, and will cover the strengths and weaknesses of each one of them.
Performance factors we will consider for magnum F-Open cartridges include:
1. Equal or better accuracy than standard chambers
2. Better ballistic performance
3. Enhanced case life
4. Barrel life
Accuracy Potential of Magnum Cartridges for F-0pen Competition
John Meyrs has won four National Mid-Range Championships using the .300 WSM. Tim Vought used the same cartridge to win two Mid-Range Nationals and used a 7-6.5 PRC to win the long range Nationals. Standard .437″ case head (.308 Win head size) cartridges still have more Nationals wins overall, but the magnums are quickly catching up, and my prediction is that magnums will dominate soon.
The accuracy and precision potential of magnums used in F-Class (.300 WSM, 7-270 WSM, 7mm RSAUM or “7 SAUM”, 7-6.5 PRC) is better than non-magnum cartridges because their shapes are closer to the ideal “fat/short” body associated with wider nodes and extreme precision. For example a .300 WSM is proportionally much closer to the 6 PPC, 6 Dasher, and 6 BRA than is the .284 Winchester.
Stunning F-Open rifle with SEB Mini front rest with Blake Machine accessories.
The first thing that comes to mind when magnums are discussed is power and speed. In my humble opinion most shooters are missing out on accuracy because they push their magnums right past the most stable and accurate nodes. Recently I met my good friend from the Army Marksmanship Unit, SFC Brandon Green, at a shooting competition. We discussed the latest and greatest in long-range shooting. I knew that the USAMU had switched from 6.5-284 Norma to 7mm RSAUM several years back, but didn’t know what load they are currently using. Brandon told me that the load featured Berger 180gr hybrids in Nosler cases at 2820 fps. We all know that the 7 SAUM is capable of much higher speeds, “but at around 2820 fps the load/rifle combo will hammer the X-Ring anywhere under any conditions” SFC Green said.
F-Open rifles on the firing line at the Ben Avery Shooting Facility in Phoenix, Arizona.
Most shooters jump right into magnum territory velocities when testing, missing out on better precision at standard chamber speeds. For example, my 30 KMR can easily reach 2880 fps with 230gr Hybrids, and it actually shoots pretty good. But the same rifle at around 2770 fps will absolutely hammer the X-Ring in any condition anywhere. When it’s all said and done, F-Class is a long-range shooting competition at a known distance which requires extreme precision and accuracy. It is not a speed race.
IMPORTANT — Case-Head Dimensions Do Make a Difference
Magnums, when shot within reasonable velocities, on average will give better case life due to the bigger case + lower pressure and “more meat” in the case-head area. For example a 7 SAUM case will outlast a .284 Win case when both are loaded to around 2900 fps.
Disadvantages of Magnum F-Open Cartridges
Perhaps the biggest disadvantage linked to magnums is recoil. Some people complain about developing the “gun shy” syndrome after shooting a magnum for a while. Muzzle blast and recoil are significantly more pronounced in magnums, but that can be easily managed with a properly-built rifle equipped with appropriate recoil mitigation hardware such as RAD and the various butt plates.
F-Open rifle equipped with recoil reduction buttpad system.
Barrel Life — “Barrels are Expendable Components”
It is true that certain magnums can torch a barrel in just a few hundred rounds. But the same is true when improving a 6BR to 6 Dasher for example — barrel life might be reduced significantly. More powder = more heat = diminished accuracy after a certain round count. In my experience, a F-Open magnum’s barrel life is very close to high-performance standard cartridges such as the .284 Shehane or .284 KMR. I “retire” my barrels around 1200 rounds regardless of the cartridge being a magnum or not. After that many rounds most barrels will still shoot OK but will copper up, and you will start seeing those unexplained vertical 9s. The bottom line is this, barrels are expendable components very much like brass. You can’t get the performance of .300 WSM and the barrel life of the .308 Win at the same time. If you want to race in NASCAR, fuel mileage should not be the top priority!
Top Magnum Cartridge Types Used in F-Class Open Division
.300 Winchester Short Magnum
The .300 WSM (Winchester Short Magnum) tops the popularity chart in F-Class Open division. It has been used to win numerous National championships and has set many National records. The .300 WSM’s short/fat case shape, with minimal body taper and 35-degree shoulder, contribute greatly to its outstanding performance at long range. Components are readily available as well. Best brass remains to be Norma, although ADG is just as good and some would even say better, but it is more expensive and harder to get at this time.
The .300 WSM has been described as a “super-sized Dasher”.
For the .30-cal magnums, in my opinion, the best bullets by far are made by Berger. If your rifle does not shoot 215gr, 230gr hybrids, or 210gr VLDs well, you likely have a rifle problem, NOT a bullet issue. My “go to” bullet is the Berger 230gr Hybrid. The 215-grainer is a close second, followed by Berger’s accurate but ballistically inferior 210gr VLD, which I use in calm and steady conditions.
Top powders for the .300 WSM are Hodgdon H4831SC and H4350. I know there are many more powders suitable for the .300 WSM cartridge, but none I have used can match Hodgdon’s consistency when shot in different geographical locations and weather conditions.
7mm Remington Short Action Ultra Magnum
The 7mm RSAUM (aka 7 SAUM) used to be the darling of F-Open. Its case capacity and shape are about perfect for launching 180gr pills with great ballistics and precision. Its popularity faded a little, due to the lack of good brass, and the rise of the improved versions of the .284 Win which can almost match the RSAUM performance. Norma still makes 7 RSAUM brass which is pretty good but little on the soft side and hard to find. ADG is arguably producing the best RSAUM brass right now. It is very uniform, reasonably priced, and seems to hold up very well even when pushed hard. The best bullets are again made by Berger, and those are the 180gr hybrid, 184gr hybrid, and 180gr VLD. Best powders are H4831sc, H4350, and Alliant Reloder 16 and Reloder 23.
7-270 WSM, 7-300 WSM, and 7 WSM
The first two are pretty much identical, the only difference being that the 7-270 WSM is necked up .270 WSM while the 7-300 WSM is a .300 WSM necked down to 7mm. I personally prefer the first one since necking-up is easier than necking-down (with fewer doughnut issues).
The WSM case-based 7mms will give you great velocity flexibility as well as superb precision when tuned well. In the 2013 world championship in Raton NM, I was scoring for a gentleman from Canada who was shooting 7-270 WSM. The wind was blowing pretty hard that day. On one of his shots, just before he pulled the trigger the wind gusted. I remember thinking that’s going to be an 8 for sure. The target came up a line 10! I asked him after the match what he was shooting, and he replied 180s at 3100fps. Although capable of such speeds, I think that potentially better and more consistent accuracy can be achieved at much slower speeds. The best powders and bullets are again Hodgdon and Berger respectively. Best cases are made by Norma and ADG, with Winchester being a third option.
7-6.5 PRC — Popular Wildcat
Last but not least on our chart is the 7-6.5 PRC. This particular cartridge is actually a wildcat. It is a 6.5 PRC necked up to 7mm. It is pretty much identical to the 7 RSAUM with the only differences being a shorter neck and .01″-narrower body. Currently the 7-6.5 PRC is the most requested cartridge that I offer when building new rifles. It seems to fill the gap between the .284 Win and the larger magnums very nicely. It is capable of reaching 3000fps but most shooters are getting their best results around 2920-2950 fps. The biggest advantage of this wildcat is brass. Lapua makes super high-quality, readily-available 6.5 PRC brass. Best powders are H4831sc, H4350, Reloder 16, and Vihtavuori VV 555. The best bullet in my opinion is the 180gr Berger. I am yet to hear about a better-performing bullet in this chamber.
Conclusion In conclusion, magnums are not perfect but their performance advantages should be very seriously considered when building a rifle for long-range F-Class. In part three, I will list the most common wildcat magnums, and present the KMR magnums which will make you (if you haven’t already) buy a magnum action and get a magnum build for sure!
– 2014 F-Class Open National Champion
– 2015 F-Class Open National Championship, Silver Medal
– F-Class Open National Championship Teams, 2015, 2014, 2013, Shooting Team Member
– Over 15 wins in Regional and State Championships in Palma, F-TR, F-Open
– 2013 U.S. National Team Member
– 2023 F-Open Gold Medal Team USA Member, 2023 World Championship in South Africa
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Pair of Premium F-Open Rifles with Kelbly Golden Bear Actions
Report by Shiraz Balolia, CEO Grizzly Industrial
This project was started 2-3 years ago when I decided to build two brand-new rifles based on the Cerus riflestock chassis. I had my own highly-figured woods and sent them to Will at Cerus Rifleworks. Within a few months I received back two very nice-looking stock blanks but unfortunately they were made for a regular recoil pad system. I was going to install the R.A.D. (Recoil Absorption Device) systems and failed to mention that to Will. Further the thumbhole slot for the adjustment knob was through-cut on both sides of the stock and placed in a position where it would interfere with the R.A.D. recoil system installation. Accordingly, some serious modifications were in order.
Modifying the Cerus Stocks and Installing the R.A.D. System
The very first thing I did was plug up the thumbhole slot in each bank and then installed decorative caps in highly-figured contrasting woods. I also wanted the thumb-knob adjustment to be accessible and adjustable using only one finger so I shifted the whole system forward and to the right. I was now able to install the R.A.D. recoil system (see below) without interfering with the cheekpiece adjustment.
Next, I installed the bottom wider track for my rear bag and also carved out the finger grooves in the grip. The blanks were quite long so I cut off approximately two inches from the front end of each stock and also deepened the large tracking cavity under the fore-ends. I went ahead and inlaid my name in Mother-of-Pearl on the Walnut stock.
Gold Kelbly Actions for Two World-Class Tack-Drivers
The two sequentially-numbered Golden Bear F-Class actions (057 and 058) arrived from Kelbly at different times and the stocks were sent to Alex Sitman at Masterclass Stocks for bedding the actions into the stocks. Alex does an outstanding job on pillar bedding and has done most of my rifles for many years.
The stocks were then sent to Sims Guitar Finishing for clear coating with “wet look” finish on the stocks. Chambering of the barrels was done in-house by Dave, our top engineer at Grizzly Industrial. Dave has chambered most of my rifles in recent years. Both he and I have been trained by Gordy Gritters in precision chambering. Finally, the rifles were assembled, scopes installed, and tested out. Both are tack-drivers made for world-class competition.
Shiraz Tests his .300 Shiraz F-Open rifle. As you’d expect shooting heavy 215gr Berger Hybrids, the recoil is significant, but the rifle tracks perfectly with smooth return to battery.
Rifle #1 – Walnut Stocked .300 Shiraz
• Chambered for .300 Shiraz (modified .300 WSM)
• Stock made of highly-figured Walnut with Curly Maple inner laminations
• Kelbly Golden Bear F-Class action
• Bartlein 1:10″-twist barrel, 31″ length
• March 10-60x56mm High Master scope with Barrett rings
• Bald Eagle tuner
• Jewel trigger
Rifle #2 – Curly Maple Stocked .284 Shiraz
• Chambered for .284 Shiraz (modified .284 Winchester)
• Stock made of highly-figured Curly Maple as well as Walnut and Wenge inner laminations
• Accents and inlays as well as the base shoe are made of Curly Koa wood
• Kelbly Golden Bear F-Class action
• BRUX 1:9″-twist barrel, 31″ length
• March 10-60x56mm High Master scope with March rings
• Bald Eagle tuner
• Jewel trigger
Two Improved Cartridges — .300 Shiraz and .284 Shiraz
The two rifles run their own respective “Improved” cartridges. The dark walnut rig runs the .300 Shiraz which is based on the .300 Winchester Short Magnum (WSM). The maple 7mm runs the .284 Shiraz derived from the .284 Winchester. Shiraz developed these two improved cartridge designs to boost the performance of the parent cartridges which are both quite popular among F-Open competitors. The .284 Shiraz has similarities to the popular .284 Shehane wildcat.
.300 Shiraz Load Information: Shiraz loads his .300 Shiraz with Berger 215gr Hybrids, CCI BR2 Primers, and Hodgdon H4350 Powder. This load produces groups under quarter-MOA.
.284 Shiraz Load Information: The .284 Shiraz (shown below) is loaded with Berger 180gr Hybrids, again with CCI BR2 Primers, and H4350 powder. And like Shiraz’s .30-cal rifle, this handsome 7mm rig delivers sub-quarter-MOA grouping capability.
This stock is made from highly-figured Curly Maple with Walnut and Wenge wood inner laminations. Accents and inlays and the base shoe are made of Curly Koa wood.
About Shiraz Balolia
Shiraz Balolia is the founder and CEO of Grizzly Industrial. He is also one of the USA’s leading F-Class shooters. He has been a Team USA member and F-Open Team USA Captain, and in individual competition he won three straight Canadian F-Open Championships (2014, 2015, 2016). That Canadian Three-Peat is definitive proof of Shiraz’s stellar long-range shooting talent.
In the video below, created when Shiraz was F-Open Team USA Captain, Shiraz works with Palma Team Coach Gary Rasmussen. With the target at 800 yards, Shiraz shows how a shooter works with a wind coach. Three cameras are employed to show the target, the shooter, and the spotter’s-eye view.
This video starts with a lesson on target reading, then Shiraz and Gary work together to judge the wind. Watch as Shiraz makes ten straight “10 point” center hits at 800 yeards. A inset frame in the video shows bullet placement after each shot. This video is highly recommended for all long-range competitive shooters and coaches.
Here is Shiraz (top left) with Team Grizzly, the 2018 U.S. F-Open Championship Team. Members are: Shiraz Balolia, Emil Kovan, David Mann, John Myers, Trudie Fay (Coach).
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For today’s Sunday GunDay story, we head across the Atlantic to the famed Bisley range in the United Kingdom (UK). There the historic Imperial Meeting took place last month. This shooting competition is steeped in history, first being held 161 years ago in 1860. Today we highlight the .300 WSM rifles shot by F-Open winner (and Forum member) Gary Costello. Gary came home with a huge haul of trophies. He won the F-Open Grand Agg on V-count scoring 665-76V, 19Vs more than second place Lance Vinall’s 665-57V. In the UK the “V” is equivalent to our “X”, and the target has five number rings, with five being the highest numerical shot value.
Gary posted: “Finally cooled down after the Bisley Imperial Meeting. What a week, 8 trophies, 14 gold medals, two silver, two bronze and the big one — the Grand. It was an experience shooting in 86+ F degree heat and at some unusual times. Congratulations to all the medal and comp winners, in particular to second-place Lance Vinall, who shot a great match”.
About the Imperial Meeting at Bisley in the UK
The Imperial Meeting is a large, multi-discipline rifle shooting match contested annually in the United Kingdom. This article spotlights Gary Costello, who won the 2021 Imperial F-Open division with his pair of handsome .300 WSM rifles.
The first Imperial Meeting event was contested on Wimbledon Common, in southwest London, in 1860 when Queen Victoria fired the first shot and gave a prize of £250 to the best individual marksman. Originally the Meeting was only available to Volunteers (regular and reserve military personnel) using the issued service rifle of the day.
Today the UK National Rifle Association holds the Imperial Meeting as an open competition with the aim to promote and encourage marksmanship throughout the Queen’s (or King’s) dominions. The event has grown to include many different disciplines. The largest entry is for Target Rifle, which dominates the final week of the Meeting and culminates with the final of the Queen’s Prize. The Queen’s Prize remains the premier award for the Meeting’s top shot, with the £250 prize still given to the winner.
Host to the competition is the National Shooting Center at Bisley, the world-renowned range complex which can host virtually all forms of shooting from air rifle to 1200-yard full-bore matches. Set in 3000 acres of heathland, Bisley is unique in character with a wide variety of ranges.
Report from Imperial Meeting at Bisley by Gary Costello
The recent 2021 Imperial Meeting was the 152nd event of its kind. Last year was my first Meeting and it was a condensed version as the COVID lockdown had just been relaxed (but later revived). This 2021 Imperial was the full version. In F-class we had 15 scheduled matches, held at 300, 500, 600, 900 and 1000 yards. In these matches you get two sighters and the 15 shots for record. This year was my second Imperial Meeting. Lots of shooters were keen to enjoy some shooting freedom now that the UK national lockdowns had ended. However the NRA was still practicing COVID safety protocols.
Three very prestigious competitions are qualifiers for the final matches. These three are: the St. Georges, the Donaldson, and the Farquharson (named after George Farquharson, the father of F-Class). The finals add another three matches if you qualify. Also there are three range Aggregates which qualify for medals/trophies.
Twin Winning .300 WSM F-Open Rifles
Gary brought TWO .300 WSM F-Open match rifles to the Imperial Meeting. Gary notes: “I had two .300 WSM rifles ready for the competition. I have managed to tune both rifles to take the same ammo and seating depth allowing me to alternate and use the same lot of ammo. My philosophy was to alternate both rifles as to not cause too much attrition/wear (due to the high round count and multiple matches). One .300 WSM rifle has a Borden BRMDX action, with some Thomas “Speedy” Gonzales mods and the trademark Speedy bolt shroud fluting. This has a 1:9.5″-twist Benchmark 5-groove barrel, actually chambered by Stuart Anselm at GS Precision Engineering Services.”
Gary’s second .300 WSM F-Open rifle features a BAT M RBLP dual port fitted with a 1:10″-twist Bartlein barrel (supplied by Speedy), with action tuned and modified by Speedy. Both rifles are chambered virtually identically. Both rifles have Cerus stocks, blueprinted Jewell triggers, and Ezell PDT tuners.
The rifles are supported with a Lenzi front coaxial rest and a Lenzi rear bag, spec’d to the Cerus stocks.
Match .300 WSM Load — Berger Bullets, Norma Brass, H4350, Fed 210M
I run the .30 Cal Berger 215gr Hybrid bullet exclusively. I have not found a better long range bullet for F-Class. I use neck-turned Norma .300 WSM brass, H4350 powder, and Federal 210gm match primers. Unfortunately H4350 is not available in the UK anymore, but I was lucky to buy up a decent amount before it was banned. I anneal the Norma brass with an AMP 2 annealer every firing. But I do NOT trim and chamfer after every firing — only when the brass gets to the point of requiring it.
Here is the .300 WSM compared to a .284 Shehane (7mm), another popular F-Open cartridge Cartridge comparison image by Kris Wilson, aka “Willow” on our AccurateShooter Forum.
The .300 WSM has been described as a “super-sized Dasher”.
OPTICS — March 10-60x56mm High Master Scopes
Both .300 WSM rifles have March 10-60x56mm High Master (HM) riflescopes. Gary notes: “In my slightly biased opinion, this scope is simply the best F-Class and long-range scope money can buy. I was using a MTR-3 reticle in one scope and the slightly thinner MTR-1 reticle in the other. The HM temp lens system is astonishingly clear and bright. It’s very easy on the eye, reducing strain and fatigue during long shoots.”
March optics have a clever system which enables shooters to use their scopes like a FFP scope on specific zoom power. The MTR1 and MTR3 reticles are subtended with hash marks at 1 MOA on 40X and 2 MOA at 20X, this allows the shooter to calibrate the necessary hold from a sighting shot without even looking at a plotting sheet, it also makes very precise hold over and follow up shots, (which proved invaluable during the week with the very switching and changing conditions) it also gives you the choice to turn down the power if mirage and conditions call for it.
March 10-60×56 HM scopes feature a Temp anti-drift lens system. This has really proved its worth in searing temps. The clarity and image quality helped me achieve three personal bests and wins. (TIP: Use the MD disk supplied with your scope if you have one. Mine never left the rifle all week.) In fact I actually stopped using my spotting scope on some of the shoots as I could see mirage better through the March than anything else.
Mental Preparation — Be Confident and Consistent
I went into the Imperial after having a very good season so far. I was unbeaten in three National 2-day matches. So my confidence was high and I was feeling good about the competition. This confidence proved a massive advantage — you have to believe in your abilities.
My main focus was to be consistent. At the Imperial it’s almost impossible to win every single competition, as there are 18 in total. However one must not to make too many mistakes and be consistent. As Brian Litz says, a “train wreck” will finish your comp. However if you stay consistent and only drop a few points here and there, you will be all right, as most other competitors will drop a few points as well. The key is not to make BIG mistakes.
Here’s an example of avoiding the “train wreck” disaster when conditions are tough:
Final Final — the Farquharson. It was super hot, the wind was up and conditions were very tricky, I knew this was going to be a survival match and it was. I saw many 3s going in, however I did have a pretty good hold on the conditions losing a few 4s but nothing major until a big fat 3 came out of nowhere. But I persevered and did not let this upset me as I could see lots of points being lost around me. When the dust had settled I won by 2 points in this match and 4 points overall in the Aggregate.
Physical Fitness — Training Is Important
I have been working hard on my physical fitness for the past two years (after a pretty serious condition). Fitness really helps in a long competition and especially in the heat, with the stress it can cause. During the Imperial match, vehicles are only allowed in certain areas so you have to be able to hand-carry your shooting kit all over the range, a very large area. In recent months, I’ve dropped 25 pounds in weight. That helped — I found myself very physically able to cope with the exertions.
Reloading Advice from Gary Costello
Check and Double-Check Everything! Often I have found errors and mistakes which would not bode well for accuracy.
Label Everything! This is especially important when preparing for a long competition, and when shooting different rifles.
Choose a Temp-Stable Powder. Make sure you select a powder that is not sensitive to temp variations. Hodgdon, and Alliant would be my choice, and of course some Vihtavuori powders.
Load to the MIDDLE of your Accuracy Node. This way you can allow for warmer or cooler temps and conditions. I see lots of guys just pick the fastest speed and/or smallest group. But that can get you in trouble on hot days.
Use Quality Tools and Dies. Buy the best reloading gear your budget allows. Quality kit will last forever and stand you in good stead.
Thanks to Speedy, Cerus, and March Scopes
A big mention has to go to my good friend and master gunsmith Thomas (“Speedy”) Gonzales. This man is a legend and has taught me more about the dark arts than anybody. I think he produces the finest rifles known to man. Give credit also to Cerus Rifleworks. All my rifles have Cerus stocks and they are just awesome. Final mention is to March Optics. I have the honor to work with this company since 2010. I believe they make the finest optics in the world.
Gary also shot with the winning White Horse Lodge F-TR Team coached by Stuart Anselm.
This Sunday we feature an impressive .300 WSM Heavy Gun shot by a superb long-range shooter. With this rig, at age 83, Arizona benchrest ace Charles Greer drilled a remarkable 2.862″ 100-10X group, beating all known 1000-Yard HG 10-shot records on the books. If this record is approved (which is likely), Greer’s .300 WSM can rightfully be hailed as the most accurate 1000-yard gun in history.
Story compiled with help from Jason Peterson
This would be an excellent 10-shot NBRSA Heavy Gun group at 600 yards, but this target was shot at 1000 yards by Charles Greer (aka “chuckgreen” on AccurateShooter forum) on February 13, 2021 at an NBRSA Match in Arizona. Chuck was shooting his .300 WSM Heavy Gun with Borden action, Krieger barrel, and Berger 220gr Hybrids. The event was hosted by the Sahuaro 1000 Yard Benchrest Club, at Three Points Range, outside Tucson, Arizona. Though it is pending final approval, it appears this is the smallest 10-shot Heavy Gun group ever shot, anywhere, at 1000 yards, and it was centered for a 10X. That’s doubly impressive when you consider that Charles Greer achieved this at age 83! Yes “Old guys rule”!
Amazing 100-10X 2.642″ (unofficial) 10-Shot Group at 1000 Yards.
This group is perfectly centered for an amazing 100-10X score. The group was range measured at 2.642 inches. For reference, the 1000-yard X-Ring is 3.00″ in diameter. The “X” itself is about 1.2″ tall. Pending final verification, this amazing target should shatter two NBRSA records. This handily beats the current single target HG score record of 100-6X held by Bill Schrader since 2005, and the single target HG group record of 3.650″ held by Tim Height (2019). For comparison, the current IBS 10-Shot 1000-yard HG group record is 2.871″ by Michael Gaizauskas from 2016. So it appears that this may be the smallest 10-shot group ever shot in competition in history. And from what we can determine, this is the first potential HG size record that also has a 100 score with TEN Xs.
Because shots are not marked in this discipline, this stunning group was a surprise to Greer: “I had no idea that I was shooting a world record target until I went back to the pits after my relay. Just as well. If I’d seen nine rounds in the X on the target, staying steady [for the last shot] would have been challenging….”
Forum member “Tom” (2016 IBS 1000-yard Nat’l Champion and holder of several IBS 1000-yard records) unofficially measured Greer’s 1K group at 2.680 inches (0.256 MOA), using Ballistic-X software. Awaiting final group measurement by the NBRSA Long Range Committee, as currently measured, this target is just under existing IBS and Williamsport 10-shot HG 1000-yard records: The current IBS HG 1000-yard group record is 2.871″ held by Michael Gaizauskas. The current Williamsport HG 1000-yard group record is 2.815″ held by Matthew Kline.
Benchrest Shooting — Sport for All Ages Charles Greer reminded us that even senior citizens can succeed in benchrest competition: “One of the benefits of benchrest shooting is that it is a sport accessible to us even as we age. I cannot run and gun anymore like I used to do in IPSC and IDPA but as long as I can get my body and my equipment up to a bench, I can still be very competitive. That is not possible for us old guys in most sports and shooting disciplines. As I am ‘only 83′ I am hoping to squeeze a few more years of competition out of the old body before I have to pack it in for good.”
Charles is thankful for what he has achieved in this sport over many decades: “The Shooting Gods have certainly smiled on me from time to time during my brief shooting career and for that I am incredibly grateful.”
This target may also be the smallest 1K 10-shot group ever shot in competition, in ANY Class. In 2014, Jim Richards fired a 10-shot, 2.6872″ Light Gun group under Williamsport Rules at Deep Creek Range in Montana. However, Jim’s record small group was NOT centered in the 10-ring and it appear that Greer’s group could measure smaller. [Editor: Charles is no stranger when it comes to 1000-yard records. Charles is the current listed holder of two NBRSA 1000-yard score records: 3-Target HG Score: 294-8X (2010); 6-Target 2-Gun Score: 441-13X (2010).]
100-10X at 1000 — This May Be a First
After looking at all the 1000-yard records from different organizations, it appears that Greer’s 100-10X score could well be a first! And it may be many years before another 100-10X score is ever shot in competition.
Arizona’s Three Points Range is known for its windy conditions. So much so that small groups are not common in match reports. 6mm cartridges that are commonly shot at other 1000-yard benchrest competitions are rarely shot at Sahuaro 1K BR Club matches. The bigger calibers dominate here.
Charles Greer NBRSA 1000-Yard Heavy Gun Specifications:
Action: Borden BRMXD drop port
Barrel: Krieger 30″ 4-groove, 1:10″ twist, custom contour 1.35″ tapered to 1.00″
Chambering: .300 Winchester Short Magnum (WSM)
Chamber Specs: .337 neck with .280 freebore
Stock/Weight: McMillan/Wheeler LRB (solid fill) stock at 27 pounds
Gunsmith: Gerald Reisdorff
Optics: Vortex Golden Eagle 15-60x52mm
Front Rest: Sinclair Competition with 4″ Edgewood bag
Rear Rest/Bag: Wahlstrom mechanical rear rest with custom Edgewood bag
Load Details: Norma .300 WSM brass, Alliant Reloder 23 powder, Federal 210M primers, Berger 220gr LR Hybrid bullets at 2800 FPS
Greer has done something clever with his McMillan/Wheeler benchrest stocks. He has flipped over (inverted) the adjustable metal rudder (or keel) that runs on the underside of the buttstock. This provides a wider, flat tracking surface. The inverted rudder runs in a special sandbag on a Walhstrom mechanical rest. NOTE: Mechanical rear rests ARE legal for BOTH Heavy Guns and Light Guns under current NBRSA rules (see page 24). Shown at right is Greer’s Light Gun, but his Heavy Gun has the same system.
Charles explains: “Both my LG and my HG are of the same configuration except for additional weight in the stock of the HG. I decided to do this so that I would not need a separate rest system for each gun which saves on expense and makes it much easier to switch the LG out for the HG during competition. No need to change rest systems and re-align everything. Both of my stocks are McMillan/Wheeler LRB models with the adjustable rudder that can be repositioned horizontally to improve tracking. The rudder has a 3/4 inch-wide base that is usually fit into an Edgewood gator bag with a flat top. I did not like the way the rifle tracked with this set up and wanted something more solid and stable.
So I found that if I turned the rudder upside down and re-installed it that way on the stock, using the same screws and holes, the top of the rudder when turned down provided me with a base 1.5″ wide with a 1/4″ rail on each side. I got a Wahlstrom mechanical rear rest and had a custom Edgewood front bag made for it with a 1.5″ separation between the ears. The rail tracks perfectly in the bag and I can tighten the ears to make it quite solid and steady. I have noticed a huge improvement in tracking with this set up. I am still refining this arrangement but plan to continue using it on both rifles. I have never seen this done and was thinking maybe your readers would be interested.”
Questions & Answers with Charles Greer
Hall of Fame short-range shooter Gary Ocock interviewed Charles Greer. This interesting Q&A dialog covers shooting styles, equipment selection, recoil management and other notable topics.
Q: Tell us about your rifle, accuracy standards, and choice of calibers and bullets for the 1K game.
Greer: I set up two rifles, Light Gun and Heavy Gun. Both will shoot 100-yard 5-shot groups in the high ones and low twos. In Arizona I want a heavy, high-BC bullet in both guns to buck the wind and want to keep the ES under 10 FPS. I’m finding .300 WSM with Berger 220 LRHT bullets and a 4 groove Krieger barrel will provide the performance I need, and I shoot this round in both rifles.
Q: Explain your rest set-up, tracking, and recoil management. And how fast do you typically shoot your strings of fire?
Greer: I am using a Sinclair Competition Front Rest along with a mechanical rear rest, both with Edgewood front bags, to give me the stability necessary to provide consistent tracking even with these relatively high recoil rounds. Almost perfect tracking and consistent return to battery in the same spot is necessary to get a record string off quickly and smoothly. I try to get my strings off in a time of between 6 and 10 seconds per round depending on conditions. Any faster and I get sloppy.
Q: What were conditions like when you shot that amazing 10-shot group?
Greer: On the day I shot the record-pending target I had the first relay. There was wind but it was light, maybe 4-5 mph and seemed steady. The flags were about halfway up to horizontal and seemed to be holding that way. My procedure is to shoot 5 sighter rounds, two to adjust my initial round on paper to the X-Ring and then three more during the last minute to check for changes in the wind. If these last three rounds stay in the Ten Ring it is usually a sign that the wind may be steady enough for me to shoot a good group. On the “record” day the last three sighters were right in or near the X-Ring and when the record target came up I quickly but carefully dumped my 10 rounds holding the scope dot right on the X. The wind apparently held absolutely steady, and I got the result you see on the target.
That is my normal shooting technique. I pretty well know during the last minute of the sighter period whether a good group will be possible. If each of my last three sighters ends up inches away from the X in different directions, I know the wind is shifty and a good group on that target is unlikely. I adjust the last sighter to the X and then dump the string the same way just hoping the wind may hold for a minute or so. Sometimes it does, but often not so much.
During the record strings there is no way to know where the rounds are going. They are not marked, and the holes cannot be seen through the scope at that distance. The 1K flags are big and heavy and not very indicative of minor wind changes so I do not try to hold off or change my point of aim unless a flag completely reverses direction during a string. I’ve found that over the years adjusting my point of aim to the X after the last sighter and then dumping my strings gets the best results overall.
Q: What is your highest shooting accomplishment so far?
Greer: Well, the highest accomplishment (if one can call it that) would have to be this 100-10X target. This may end up being the best 10-shot target ever shot in a sanctioned match. 0f course, there is a tremendous amount of luck involved in this coming together but I certainly am pleased.
I had set four NBRSA world records when I was shooting previously: Light Gun Agg in 2008, and all three possible Highest Three Target Score records in 2010, two of which still stand. The first was probably the most satisfying as was my performance in the 2010 Nationals where I placed high in several categories and was Heavy Gun Champion for Score.
Q: Who do you attend matches with?
Greer: During the last year my son, Brian, has become my match shooting companion. We go out together every month. Brian was able recently to purchase the great 300 Ackley HG that I competed with and set world records with in 2010. I sold the rifle to a friend who never shot it and it found its way back into our family. Brian is now becoming a serious competitor.
Photo Right: Charles Greer with son Brian.
Q: What are your future shooting goals?
Greer: To keep on shooting our local match each month and to try to get to the Nationals once or twice more before I get too damn feeble. And to be able to see my son take my place as a regular winner when I can no longer compete.
Q: Is there any advice you would like to share with new shooters?
Greer: Make a commitment to excel at whichever discipline you choose. Get the best equipment and components that you can afford and consider each match a learning experience. At some point anything that can go wrong will go wrong and one must learn from these mistakes. Most importantly, be patient and keep coming back. In Arizona good shooting conditions are rare. You gotta be “in it to win it”. If you show up at every match you can attend eventually a great condition will appear on your relay and you will have a chance to shoot a spectacular score.
Q: What is your shooting background?
Greer: I started shooting rabbits as a kid in the Mojave Desert, trained on various firearms in the military in the fifties and sixties and over the years hunted birds and large game and played with various handguns. In 2005 I moved to Tucson from Mexico the first time and, looking for an activity, started shooting IDPA and IPSC pistol matches at Pima Pistol Club. Shortly thereafter I bought a .308 Savage tactical rifle and got interested in shooting for accuracy. One thing led to another and before long I bought a better Savage varmint rifle in .300 WSM and started shooting the 1K match at Tucson Rifle Club at Three Points around 2007. I kept upgrading my equipment, started winning matches, set some world records.
After the 2011 NBRSA Long Range Nationals I felt rather burnt out on shooting. I sold all my guns and equipment and headed South looking for perhaps one more adventure. I found some but they did not include shooting as South of the border folks tend to shoot back when they hear anything go bang. I returned to Tucson in May of 2019, built a couple of new rifles, and got involved again in the monthly Sahuaro match where the most recent world record target was shot. I would like to resume shooting the NBRSA Long Range Nationals. Will not be ready this year but probably will in 2022.
Q: Have you tried other disciplines at different ranges?
Greer: I have only competed in Long Range, mostly 1000 yards but 600 yards a few times at the Nationals. I would like to try shooting “Score” and there is a monthly match at our range. May try it if I can get an appropriate rifle.
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Today’s featured rifle comes from the land Down-Under — Australia. This impressive .300 WSM F-Open rig has top-tier components/accessories from multiple countries. From the USA comes the Borden BRMXD action, Krieger barrel, McMillan Kestros ZR stock, and R.A.D. 2 recoil system. The 10-60x56mm March scope comes from Japan. The Lenzi rear bag is from Italy, and the SEB front rest is from Indonesia, with a Rodzilla top from America. This rifle is brand new, and just had its first competitive test this weekend, emerging with the top 600m Aggregate. By all indication, this .300 WSM F-Open beast is a winner.
Impressive .300 WSM F-Open Rifle from Australia
This rifle belongs to Kris Wilson, aka “Willow” on our AccurateShooter Forum. Just last week Kris posted in the Pride and Joy Rifle thread: “Got my latest build up and running — a .300 WSM F-Open rifle. Never shot a .300 WSM (Winchester Short Magnum) before today and I have to say that, while the recoil is on the sharp side, it’s entirely manageable thanks to the stock design and front rest.” Kris resides in Sydney, New South Wales, Australia and shoots at the Hornsby RSL Rifle Club. He is his club’s current F-Open Champion, even with some very tough competition — his club boasts two Australian F-Open championship-winning club members. Kris loves the F-Class game: “I started rifle shooting in 2015 when I was introduced to the world of F-class through shopping for a riflescope. Once I saw what F-class was all about, I was hooked.”
Kris produced this video on December 5, 2020. He reports: “Here is my first real outing with my new .300 WSM. I had previously sighted in at 50 meters at an indoor range to establish a wind zero. Had a rough idea of velocity so I threw together two loads to run at 600 meters. Our Aussie targets have a max numerical ring value of 6 (equivalent to “10” on USA targets). On Stage One I shot a 60.8X (60.10X max possible), grouping about 3.7 inches. On Stage Two, shown in this video, I shot a a 66.9X (66.11X max possible) with a 3-inch grouping. I took first place in both stages and won the overall Aggregate for the day. That earned me a Christmas ham and turkey for my trouble!”
.300 WSM Rifle Hardware, Cartridge Choice, and Reloading
Report by Kris Wilson, NSW, Australia
Stock: McMillan Kestros ZR with R.A.D. 2 system. 70% black, 15% grey, 15% red.
Action: Borden Rimrock BRMXD, left bolt, right port, left eject. The action is fully DLC coated and fitted with a +20 MOA rail
Trigger: TriggerTech Diamond
Barrel: Krieger 1:10″-twist, 4 groove finished at 31″ and fitted with an Ezell tuner.
Scope: March High Master 10-60x56mm with MTR-1 reticle, illuminated
Rings: ARC M10 High Rings
Front Rest: SEB Mini Rest, with Rodzilla Rest Top system
Rest Feet: Bryan Blake (F-Class Products) adjustable stainless feet
Rear Support: Lenzi (Italy) LR Rear bag, with custom metal base plate
Cartridge Selection — Why the .300 WSM Was Chosen over a 7mm Cartridge
I set out with the goal of building my ultimate F-Open rifle. Now “ultimate” is of course subjective, but I did not want to leave any stone unturned when it came to building a .300 WSM. When researching the equipment for my new build I had a couple of ideas in mind. I was already shooting a 7mm, in the form of a 280AI which had served me well, but I already had plans to switch to a .284 Shehane with the introduction of Peterson .284 Win brass, coupled with the fact Norma stopped making 280AI brass (Note: Peterson now makes 280AI brass). While I was reasonably well-covered with my .284 Shehane, I wanted something with a bit more horsepower to hold up at long range in choppy conditions. A lot of the top guys here shoot 7mm SAUMs but I wasn’t keen on going down that path. Why? For every accurate SAUM I’ve seen, I’ve seen others struggle and given that the 7mm SAUM seems to be particularly hard on barrels, I wanted something that could match the 7mm SAUM ballistically, but have better barrel life.
After plenty of research on AccurateShooter.com, and speaking with some shooters, both locally and in the USA, I decided to give the .300 WSM a go. This cartridge is not particularly popular in Australia for F-Open, primarily because most states enforce muzzle energy restrictions, so pushing the .300 WSM to its potential simply isn’t viable for many shooters here. It IS viable in my home state however, along with the ACT, so I can at least use it in major competitions in two Australian states without having to run at lower nodes where it would otherwise be trumped by the 7 SAUM shooters. I was also attracted to the cartridge through its general design, having a 35-degree shoulder angle similar to the inherently accurate .284 Winchester. I also think the .300 WSM resembles a super-sized Dasher, another devastatingly accurate cartridge. Most .300 WSM shooters report ease of tuning, another key factor I considered.
Choice of Stock, Action, and Barrel
My gunsmith, Matt Paroz (aka MattP on the AccurateShooter Forum) is one of Australia’s top gunsmiths as well as one of Australia’s top F-Open shooters. He knows what it takes to build match-winning rifles. Matt is also an agent for McMillan stocks and I was sold on the Kestros ZR after seeing how it well it tracked — the lower center of gravity it offers cannot be underestimated once you start stepping up in caliber size. I had previously seen a couple of rifles that Matt built for an Australian F-Open team member and I was blown away not only by the quality of the builds, but how well the components worked with one another. I already own a Barnard action, a match-winning action in its own right, but I was desperate to get my hands on a Borden. I liked the fact that Jim Borden times his actions as they leave his factory, so I ordered a BRMXD, left bolt, right port, left eject. I ordered my BRMXD fully DLC-coated, for both longevity and aesthetics.
I opted for a TriggerTech Diamond trigger which has been timed to the action and offers a level of crispness the factory Barnard trigger cannot replicate. The synergy between action and trigger is just superb. I managed to get my hands on a 10-twist, 4-groove Krieger barrel that looks like a winner so far. Finished at 31″, this barrel has been super-easy to tune so far, with Berger 215gr hybrids showing very good promise. NOTE — Overall the rifle comes in 500 grams (1.1 lbs.) below F-Open max weight, so the next barrel will probably finish at 32″.
The barrel sports an Ezell tuner. I don’t touch the tuner until I’ve sorted my load and bullet seating depth. The tuner just affords me that extra flexibility in tightening up an already good grouping. At the end of the day, like any competitive shooter, I’m chasing tight vertical and horizontal, something which will run inside 1 MOA at 1000 yards. If I drop a shot, I want it to be my fault, not the rifle’s.
About my optics choice — when the chance to own a March High Master came up, I didn’t think twice. I have used March previously and got a sneak peek through an original High Master prototype which was doing the rounds in Australia. With superb image quality, it left a lasting impression. March has built up an excellent following and reputation in Australia, and so far I have to say it was money well spent. The March is held in place with a set of beefy ARC M10 rings.
The rest of my F-Open setup includes a modified SEB Mini up front, with a Rodzilla Rest top and Bryan Blake adjustable feet. I chose the SEB Mini because it has a wide, stable footprint but relatively light weight. That makes the Mini easier to transport. At the rear I use an extremely well-crafted Lenzi LR bag which sits on a custom rear plate. This heavy combination keeps things nice and planted. That aids in straight tracking.
Reloading for the .300 WSM — Process and Die Choice
When it comes to reloading, I keep it simple and don’t over-think things. I use Norma .300 WSM brass. I ensure case mouths are always deburred on the inside and out but I do not neck turn. I am set up to turn necks with a 21st Century unit, but after neck turning previously for a 6mm SLR, I just didn’t see a noticeable benefit in doing so. I always full length re-size after firing and prefer bushings, generally opting for .002″ of neck tension on anything I shoot. So far it seems to be working. With my .300 WSM I run a Redding Type-S full-length bushing die with a .335 bushing. A loaded round comes in at 0.337″ across the neck and I opted for a no-neck turn reamer which comes in at 0.343″, so there’s plenty of clearance. I use a Forster micrometer seating die. I prefer the feel of the Forster and I use Redding dry lube media to assist in smooth bullet seating.
Reloading room with MEC single-stage press on left and AutoTrickler with Force Restoration Scale on right. Note there are plenty of bullets — Kris got his supplies before the shortage.
I use an AMP Annealer and anneal after every firing. Powder charges are measured and dropped with a V3 AutoTrickler and A&D FZ500i scale. The 215gr Berger Hybrid seemed like a pretty good place to start as far as bullet selection. I point them with a Whidden bullet pointing die. Powder options can sometimes be a contentious choice and if you’re lucky you’ll get a couple of powders which will work well in any given barrel. For my .300 WSM I use Alliant Reloder 23. It is very temp-stable. My primer of choice is S&B Standard Large Rifle Primers. How does it all come together? The first nine shots through the barrel while zeroing the scope resulted in an ES of 17 and SD of 6 — promising signs for a light initial load of 63 grains.
First Test in Competition — Kris Earns Victory at 600m with his .300 WSM
The first real test came after only 19 rounds had gone down the barrel. My local range and district had its annual Christmas shoot with Christmas hams and turkeys awarded to discipline winners. I was up against a decent field with two members from the Australian F-Open team running against me — one sporting a .284 Win and the other a 7mm SAUM. I ran two different loads using Reloder 23. I was hoping to be in the vicinity of 2920 fps with my pointed Berger 215gr hybrids. What made this a bit harder was not being able to run my LabRadar prior to the shoot. Based on user comments on the 215gr hybrids, I jumped them 20 thousandths, hoping they would hold together and not end up with a shotgun grouping on target.
My first sighting shot at 600 meters was a 4 which landed high, but windage was good. I wound down 1 MOA and the second sighter was a 5. My first scoring shot was an X. I proceeded to shoot clean, scoring a 60.8X (100.8X on a USA target), with the group measuring 3.7 inches. Quite a good start for shots 20-31 through the barrel! For Stage 2, we were only allowed one sighter with 11 shots to count (66.11 max possible). I knew my second load was a touch higher so I came down several clicks, and my first sighter was an X. This second stage load grouped tighter, shooting clean again with a 66.9X, with 11 shots in 3 inches. That was good enough to take first place in both stages and win the overall Aggregate for the day. See HEXTA target screen capture below. American readers take note — a SIX in Australia is the same as a TEN in your USA system.
Suffice to say I was very pleased with how things turned out! Despite the bigger bang this rifle makes, the Kestros ZR and R.A.D. 2 system made it remarkably compliant. The recoil is sharp but the R.A.D. system just takes all the sting out of it — it reminded me of shooting my old 280AI in terms of felt recoil. I was able to get back on target with a minimum of fuss and didn’t find the rifle fatiguing at all, so it gets a massive thumbs up from me. This just illustrates how important component selection and rifle set-up is to the overall experience. Going home with a Christmas ham and Turkey was an added bonus!
CONCLUSION — The .300 WSM is Very Effective for F-Open
With recent trends in F-Open equipment, such as rifle stock technology making a lower center of gravity possible, bigger F-Open options such as the .300 WSM are now quite manageable. That’s not to say this caliber is a pussy cat — it definitely kicks more than the .284s out there. But with my choice of components, the recoil is manageable and the R.A.D. 2 system takes the sting out, so I’m not left nursing a sore shoulder at the end of a stage. The rifle is off to a very positive start so far but I know it’s capable of more. The lead up to Christmas will keep me busy fine-tuning a load in time for the NSW State Title match to be held in late January 2021. With COVID-19 halting most competitive shooting in Australia in 2020, this 2021 NSW competition is sure to prove popular. I intend to have my .300 WSM rifle humming in time for it.
Kris Wilson (NSW, Australia) Talks About Competitive Shooting
When I was introduced to F-Class shooting, I was fascinated with the level of accuracy shooters were obtaining with their rifles and it was something that just drew me in. Since then it has been a gradual learning curve, not to mention the fact everyone I have met has been super friendly and willing to share their knowledge. The shooting fraternity is a great community to be part of…. Mixing it with Australia’s best is what drives me right now.
For the past two years I have taken competition more seriously as I hope to represent Australia in the future. In my first Nationals match in 2019, I finished 15th out of 30 F-Open shooters. I then finished 7th in the 2019 NSW State Championships, with every shooter above me having been a state or national championship winner, including current F-Open world champion Rod Davies. 2020 has been different due to COVID-19 — unfortunately many of Australia’s state championships and prize shoots were cancelled. But I’ve been working hard to maintain my skills and the new rifle is motivation. As reloading equipment and rifle components continue to improve, it’s a great sport which encourages learning and provides many opportunities to keep improving your shooting.
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We like “outside of the box” thinking. And in the world of competitive shooting, it can’t get more unconventional than this. But this radical liquid-cooled benchrest rig wasn’t just a crazy experiment — it actually delivered the goods. This IBS Heavy Gun, built by Joel Pendergraft, produced a superb 10-shot, 3.044″ group that stood as an International Benchrest Shooters (IBS) 1000-Yard Heavy Gun record for seven years, not being broken until 2016.*
Using this water-cooled wondergun, Joel shot the record-breaking group in April 2009 at Hawks Ridge, NC. This monster features a .30-Caliber 12-twist, 4-groove Krieger barrel inside a water-filled sleeve (like on a liquid-cooled machine gun). Joel shot BIB 187gr flat-based bullets in Norma brass, pushed by a “generous amount” of Alliant Reloder 25 and Federal 210M primers. The cartridge was a big custom wildcat Joel listed as “.300 Ackley Improved”. That traditionally has been based on the .300 H&H Magnum parent case**. READ Forum Thread on .300 Ackley.
This 3.044″ 10-shot group was a remarkable accomplishment, breaking one of the longest-standing, 1000-yard IBS World Records. And Joel’s 3.044″ record stood for 10 years.
This 3.048″ 10-shot group was a remarkable accomplishment, breaking one of the longest standing 1000-yard World Records. Bill Shehane commented: “This tops the NBRSA, IBS, and Original Williamsport Clubs’ all-time 10-shot Heavy Gun group records. Took a long time to do it and I for one know Joel did not back into it — he worked harder than most… to break this record. And just like John Voneida of the Original Williamsport Club who held this most prestigous record for so long, Joel is a super nice guy and a great competitor.”
Pendergraft was modest after his notable achievement: “What makes this so very special is to be able to celebrate the accomplishment with all of my shooting friends[.] A good friend once said that records are shot when preparation and opportunity meet. I feel blessed to have personally had the opportunity. The preparation we can individually work on and achieve but the opportunity only comes to a few. Those of you that compete in long range competition will know what I mean.”
*On July 24, 2016, Michael Gaizauskas shot a 2.871″ ten-shot group that bettered Pendergraft’s record by 0.171″ (less than a quarter inch). Michael’s group was also all in the 10 ring, for a perfect 100 score. CLICK HERE for IBS Long-Range Records.
** Back in 2008, the .300 Ackley was the #1 Cartridge in 1000-yard competition at Hawks Ridge. SEE Results Chart. Forum member Cheechako explains: “The .300 Ackley Magnum is actually the .300 H&H case improved. Many shooters will start with the Weatherby brass because it is higher quality. There are several versions of the Ackley but the differences are minor until you get into the few, like the 300 Hart, that actually do increase the capacity. There is also a .300 Weatherby Improved which is sort of a misnomer because it’s almost impossible to improve that case except to eliminate the rounded corners.”
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Since its introduction in 2001, the .300 Winchester Short Magnum (.300 WSM), has proven very popular for hunting and long-range competition. The case has ample capacity to drive the heavy .30-caliber bullets, and with proper case prep and annealing, the WSM is capable of outstanding accuracy. When Nebraskan Greg Anderson decided to build his “ultimate long-range hunter”, he selected the .300 WSM for its accuracy and its ability to drop large game at long distances. Teaming up with Chris Matthews of LongShot Rifles, Greg developed an impressive long-range hunting rig, with high-tech components to reduce weight. The 26″ barrel is a carbon-wrapped composite over a Rock Creek stainless blank. The carbon technology saved about 3 pounds over an all-steel barrel of similar length/contour.
The Manners Composite stock also features carbon fiber construction for stiffness and reduced weight. Greg’s carbon/carbon rifle tips the scales at just 10.8 pounds, including scope and bipod. A conventional rig could easily weigh 15 pounds or more. Greg’s carbon hunter has proven accurate as well as innovative. With 175gr Sierra MKs, the gun shoots well under 1/2-MOA out to 600 yards and beyond.
The Ideal Spot and Stalk Rifle
by Greg Anderson
The purpose of this project was to create a hunting rifle that would be inherently accurate at long range and have an acceptable weight for hunting in rough country. I researched the question of overall weight with several gunsmiths. The smiths confirmed that while fat-contour barrels could deliver improved accuracy, there was a price to pay and a lot more weight. With a heavy barrel, the finished rifle would be most likely weigh about 15 pounds. That’s more than I wanted to haul around in the field. To reduce barrel weight, the suggested “traditional” solutions were fluting, which would reduce barrel weight by at least one-half pound, or going with a smaller diameter barrel.
The Quest for Reduced Weight without Accuracy Loss
Fluting didn’t promise enough weight savings, and a slim, sporter barrel probably wasn’t going to deliver the kind of consistent accuracy I wanted (particularly as the barrel heated up). Accordingly, I decided to “think outside the box”. My research on lightweight barrel options lead me to Advanced Barrel Systems, (ABS) a company in Lincoln, Nebraska that once produced custom carbon-wrapped barrels. ABS President Mike Degerness could wrap a barrel to virtually any shape and diameter, allowing great stiffness even with a huge reduction in barrel weight. As the “core” for his carbon-wrapped barrels, Mike recommends a cut-rifled blank made by any of the quality cut-barrel makers. [NOTE: ABS is not taking orders at this time. You cannow get excellent carbon-wrapped barrels from Proof Research].
Significant Weight Saving with Carbon
How much weight can you save with a carbon-wrapped barrel? Well a 24-inch, #7 contour ABS carbon-wrapped barrel will weigh about 2.5 pounds compared to about 5.5 pounds for a steel barrel of the same length and contour. So, this means that you can put a fat, stiff competition-contour barrel on your hunting rifle and save over half the barrel weight compared to an all-steel barrel. Saving three pounds is a blessing when you’re carrying the rifle all day long in the field. I placed an order for a 30-caliber Rock Creek barrel blank with an 1:11.25″ twist and a finished length of 26″. Mike wrapped the barrel and finished it to an M24 contour.
Carbon Can Also Improve Barrel Vibration Damping
One interesting benefit of carbon barrel-wrapping is that the carbon components have a vibration-dampening effect. According to ABS, the extreme rigidity of the finished composite barrel dampens the vibration nodes of the barrel making it shoot like a plain steel barrel of much greater mass. Carbon fiber has a high modulus of elasticity that has the effect of lowering the amplitude of the vibration of the barrel when fired. This is what makes the ABS barrels perform so well, according to Mike.
Impressive Accuracy For a Hunting Rifle
Looking at the targets below, one may ask, “Does the rifle always shoot this well?” The answer, not surprisingly, is: “it depends on the trigger-puller”. The rifle is capable of outstanding accuracy. But it took some time and effort for me to develop the skills required to shoot up to the rifle’s inherent accuracy. I nearly always practice prone from bipod. Initially, I was getting horizontal stringing until I changed my grip and learned to be more consistent from shot to shot. Shooting a heavy-recoiling .30-caliber rifle from the ground is not the same as shooting a .223 Rem from the bench.
3-Shot Group at 200 yards | 6-Shot Group at 500 Yards
Completing the Project Build
To smith the rifle, I selected Chris Matthews of LongShot Rifles, LLC because of his expertise with the WSM cartridges and long-range shooting equipment. Because cost was a factor, we decided to use a donor Remington long action that had been used on a Remington 7mm magnum. Chris trued the action and we had Dave Kiff from Pacific Tool & Gauge grind us a bolt to fit the action more perfectly. Chris chambered the Rock barrel and installed a .300 Badger recoil lug.
Carbon-reinforced Hunting Stock from Tom Manners
Being a fan of carbon fiber technology, I selected an MCS-T stock from Manners Composite Stocks. These stocks have an extremely high strength-to-weight ratio and the high comb of the MCS-T gave an almost perfect alignment with the scope. The finished rifle was topped off with a Leupold 4.5-14x40mm LR scope equipped with M1 windage and elevation turrets. A Harris bipod completed the package. All up, including scope, steel rings, and bipod, my .300 WSM rifle with 26″ barrel weighs 10.8 pounds.
Load Development for Accuracy
I developed a load using 63.0 grains of H4350, 175gr Sierra Match Kings with Federal 210M primers in Winchester-brand brass. This load gives 2960 FPS out of my rifle. The load would shoot sub-MOA from bipod from 100 yards to 600 yards and was adopted as the “go to” load. I have also tried the 208gr Hornady A-Max in this gun. The A-Maxs shot well but the Sierras work well for everything (paper punching and hunting) so the 175gr SMK is my bullet of choice.
Brass Prep and Annealing Are Very Important
The Winchester-brand brass is good, but you have to prep it thoroughly if you want good results. My brass prep consisted of turning the necks, de-burring the flash holes (inside and out), and chamfering the case necks. Using a Sinclair neck-turning tool, I turn the necks to .0135″ per side. That provides a complete clean-up of the necks, which run about .015″ neck-wall thickness out of the box.
One thing I’ve learned to do is anneal the brass every 3-4 firings. I started to do that after I noticed that the force required to seat bullets became inconsistent after just a few loading cycles. I also experienced flyers that were going out of the group for no apparent reason. Annealing the cases every 3-4 firings has eliminated most of the unexplained flyers and annealing has also made bullet seating much, much more consistent. I’ve also noticed a significant improvement in my groups at 500 and 600 yards now that I anneal regularly. Group sizes at 600 yards can be as much as 2″ smaller with annealed brass than with un-annealed, work-hardened brass.
Greg Anderson was successful with his .300 WSM on his very first hunt, dropping a nice buck at 364 yards. Chris reports: This was on some private land in Nebraska. As daylight faded… there were a couple of bucks, but one looked to be the best of the lot. The buck gave me a broadside shot ranged at 364 yards. I settled behind the scope and took one shot. It hit right where I aimed and the buck just folded.”
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Here is Tye Sim’s .270 Win Mountain Rifle: “This is off a trued and blue-printed Rem 700 action. I love it.”
For today’s Sunday GunDay feature, we thought we’d present a selection of rifles featuring both cool gear and scenic venues. We’ve got quite a mix — hunting rifles and competition rigs, full customs as well as factory rifles. And there are some interesting calibers including 6.5 Creedmoor, .270 Win, .308 Win, plus a couple WSM variants. Enjoy our Sunday lineup!
To begin, here is the beautiful Blair Atholl range in Scotland. Owner Gary Costello posted: “Great day today, weather was interesting but not as bad as we thought!” Gary, a top F-Class shooter in the UK who often runs a .300 WSM, has been featured in a previous Sunday GunDay spotlight story HERE
Andrew Stone is an F-Class shooter from the Southern USA. Here his F-Open rig is set up for load testing from the bench at his beautiful, tree-lined home range. Targets are at 600 yards. Andrew is using a SEB front coaxial rest and LabRadar chronograph mounted on an aftermarket tripod.
In the photo above is Brian Harder’s handsome .308 Win F-TR rifle. This features a Kelbly action, McMillan stock, and Vortex scope with level. Up front is a SEB Joystick Bipod (Joy-Pod) with accessory ski-type feet. Note that Brian runs a front scope extension tube (sunshade), and a mirage shield on the barrel. These items do make a difference, particularly on hot summer days!
Here’s another British Beauty. This is the 7mm-270 WSM F-Classer belonging to Forum member Ian B. (aka “Elwood”). It features a Stolle Panda F-Class action, 32″ straight-contour Bartlein barrel, and a custom Joe West stock, modified by Ian and then hydro-dipped in brilliant blue by Hydro Graphics in the UK.
Factory rifles can be interesting too. That’s pretty impressive accuracy shown by Steven Castleman’s Bergara B14 HMR chambered in 6.5 Creedmoor. On this day Steve was shooting Hornady factory ammo loaded with 147-grain ELD Match bullets.
Here’s a stunning silhouette of a Savage 6.5 Creedmoor. Ed Whipple posted: “Borrowing a Savage 10 BA Stealth from my buddy Ron. He wanted a 100-yard head shot on a hog. I’m not listening to Ron any more. Federal Fusion bullet ain’t messing around.”
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Project by Shiraz Balolia, President of Grizzly Industrial
The lowboy stock you see above started as an experiment. I had an extra Masterclass F-Class stock that had gone through two actions, four beddings, and multiple modifications over the years. I figured that there was nothing to lose if the experiment did not work out.
After deciding on the design, the stock was carefully leveled in every direction and milled to the precise dimensions for attaching the side pieces, which would be glued to the original stock.
Curly Maple and Bubinga wood were laminated to get the exact thickness of the side pieces so that the total width of the fore-end would be just under the total width allowed for F-Open stocks.
Two guide pins made of Bubinga were drilled through each side so that the sides would not move when glued to the milled stock.
Once the sides were glued to the blank, the stock was once again trued on the mill so it was perfectly flat and square with the back (see below).
The stock was then sent to Keith Weill at KW Precision who did an incredible bedding job on the new BAT M action. The stock was then sent out for spraying a clear finish. Normally I spray my own stocks, but I did not have time for this stock, so that part was subbed-out. The finger grooves and “Shiraz” inlay had been done by me a few years prior during the old stock’s heyday.
Modified Stock Has Significantly Lower Center of Gravity
The rifle was then assembled, a March 10-60x56mm High Master scope was installed, and break-in was completed on the new barrel. At the range, the stock performed great. The stock rides one-half-inch lower in the front bag and really feels good.
Bartlein Barrel Is Chambered in .300 WSM
I was pleased to find that the Bartlein barrel I have on this gun cleaned up very well during barrel break-in and this “experiment” may turn into this being one of my best-performing guns. All of my F-Open match guns are .300 WSM (Winchester Short Magnum), and so is this one.
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There will be two divisions at The F-Class National Championships: F-Open and F-TR. In F-Open the rifles can shoot any cartridge type (up to .35 caliber) and have a 22-lb (10kg) weight limit. A front rest is allowed, and most shooters favor a rest with a joystick control.
In conclusion, magnums are not perfect but their performance advantages should be very seriously considered when building a rifle for long-range F-Class. In part three, I will list the most common wildcat magnums, and present the KMR magnums which will make you (if you haven’t already) buy a magnum action and get a magnum build for sure!
One thing I’ve learned to do is anneal the brass every 3-4 firings. I started to do that after I noticed that the force required to seat bullets became inconsistent after just a few loading cycles. I also experienced flyers that were going out of the group for no apparent reason. Annealing the cases every 3-4 firings has eliminated most of the unexplained flyers and annealing has also made bullet seating much, much more consistent. I’ve also noticed a significant improvement in my groups at 500 and 600 yards now that I anneal regularly. Group sizes at 600 yards can be as much as 2″ smaller with annealed brass than with un-annealed, work-hardened brass.
Charles Greer reminded us that even senior citizens can succeed in benchrest competition: “One of the benefits of benchrest shooting is that it is a sport accessible to us even as we age. I cannot run and gun anymore like I used to do in IPSC and IDPA but as long as I can get my body and my equipment up to a bench, I can still be very competitive. That is not possible for us old guys in most sports and shooting disciplines. As I am ‘only 83′ I am hoping to squeeze a few more years of competition out of the old body before I have to pack it in for good.”
Greer has done something clever with his McMillan/Wheeler benchrest stocks. He has flipped over (inverted) the adjustable metal rudder (or keel) that runs on the underside of the buttstock. This provides a wider, flat tracking surface. The inverted rudder runs in a special sandbag on a Walhstrom mechanical rest. NOTE: Mechanical rear rests ARE legal for BOTH Heavy Guns and Light Guns under current 
Q: Who do you attend matches with?
This 3.048″ 10-shot group was a remarkable accomplishment, breaking one of the longest standing 1000-yard World Records. Bill Shehane commented: “This tops the NBRSA, IBS, and Original Williamsport Clubs’ all-time 10-shot Heavy Gun group records. Took a long time to do it and I for one know Joel did not back into it — he worked harder than most… to break this record. And just like John Voneida of the Original Williamsport Club who held this most prestigous record for so long, Joel is a super nice guy and a great competitor.”
