Brownells is a well-known retailer of guns, gun parts, tools, accessories, ammo, and pretty much everything gun related. Brownells has a very active video production department that releases new “how-to” and product information videos every week. These videos offer helpful advice on gun cleaning/maintenance, reloading, as well as selecting/assembling components for various kinds of rifles. There now over 1000 videos on the Brownells YouTube Channel, this really is a remarkable resource.
One of our favorite regular Brownells video features are the Quick Tip Cartridge Comparisons. Brownells tech staffers look at a pair of cartridge types and reveal the noteworthy differences. Here are three recent Cartridge Comparison videos from Brownells.
6.5 Creedmoor vs. .260 Remington
Brownells Gun Tech Caleb Savant compares and contrasts the 6.5 Creedmoor rifle cartridge with the older .260 Remington. Both cartridges are often loaded to nearly the same overall length (OAL), but with more of the bullet inside the neck for the .260 Rem. The .260 Remington is basically a .308 Winchester necked down to 6.5mm (.264″). The 6.5 Creedmoor has a shorter case, with a more modern 30-degree shoulder angle. With the same cartridge OAL, that can make it possible to load longer-ogive, higher-BC bullets. However, with a long-freebore chamber, the .260 Rem can certainly run any high-BC 6.5mm bullet made.
The .260 Remington can, theoretically, generate a bit more velocity at the muzzle because its longer case holds a bit more powder. However, with high-quality Lapua brass, in the real world, the 6.5 Creedmoor comes pretty darn close to .260 Rem performance with any given bullet weight. Moreover, the 6.5 Creedmoor is available with small primer pocket brass from Lapua. This brass may give a higher number of reloading cycles before case-head expansion becomes a problem. For the hunter, both choices are good, but the older .260 Rem may feed a bit better from a magazine, given the .260’s case taper and longer body. Overall, we favor the 6.5 Creedmoor for its versatility and efficiency, but the .260 Rem is a good cartridge too.
6.8 SPC vs. 6.5 Grendel
Brownells Gun Tech Caleb Savant compares two medium-caliber cartridges that can work in AR15-platform rifles: the 6.5 Grendel and the 6.8 SPC (aka 6.8mm Remington “Special Purpose Cartridge”). The 6.5 Grendel is typically loaded with a high-BC .264″ bullet, while the 6.8 SPC has a larger-diameter .277″ bullet. Both have the same 2.26″ OAL as the AR-15’s standard .223 Remington / 5.56 NATO round. The big difference is the 6.5 Grendel’s faster velocity and flatter trajectory. With the same bullet weight, Brownells says the 6.5 Grendel will be about 100 fps faster than the 6.8 SPC. Given a 100-yard zero, the 6.5 Grendel will drop about 8.5″ at 300 yards, while the 6.8 SPC will drop 10.5″ at the same range. The 6.5 Grendel is probably a better choice for long-range targets, at least when loaded with a higher-BC bullet. A big difference is brass. You can get superb Lapua brass for the 6.5 Grendel. Not so for the 6.8 SPC, which really has never developed into a widely popular accuracy round.
7.62×51 NATO vs. .308 Winchester (Subtle differences)
Brownells Technician Caleb Savant talks about the .308 Winchester and 7.62x51mm NATO. Most shooters know that both rounds have the same external dimensions. In fact, the military 7.62×51 was developed from the civilian .308 Winchester. So… can they be used interchangeably? The 7.62×51 cartridge normally can be fired from any rifle chambered in .308 Winchester because the 7.62 is spec’d for a lower pressure than SAAMI max in the .308 Win. However, we have encountered some British and Austrian 7.62×51 NATO milsurp ammo that was VERY hot — more than a typical commercial .308 Win Load. Accordingly you should always be careful when shooting new 7.62×51 ammo in your rifles. Likewise you should be careful about shooting higher-pressure .308 Win in some 7.62 NATO rifles. The 7.62×51 NATO chamber is slightly longer, and the cartridge’s case is typically a bit thicker, so it will “flow” and expand into the extra space. NOTE: Some newer rifles with 7.62×51 NATO chambers ARE made to handle .308 Win ammo. Check the owner’s manual or contact your rifle’s manufacturer to find out for sure.
.44 Magnum vs. .45 Long Colt — Great Wheelgun Cartridges
Brownells Gun Tech Steve Ostrem does a quick compare-and-contrast of the .44 Magnum and .45 Long Colt — two of the most popular revolver cartriges. The .45 LC debuted in the 1870s, when the steel used in revolvers was much weaker than modern steel, so it’s typically loaded as a low-pressure cartridge. The .44 Magnum was developed in the 1950s specifically for hunting, and stronger modern gun steels meant revolvers could be built to handle its much greater pressures. Full-power commercial .44 Magnum ammunition tends to be easier to find. The .45 Colt you find at the gun store is loaded mildly so folks don’t blow up their vintage revolvers! BOTH cartridges are great for handloading because they have straight-wall cases and can handle a wide variety of powders and bullet weights. Dies, brass, and bullets are readily available for both. If you don’t handload but want a hunting revolver, .44 Magnum is the better choice, as there’s more FULL-power factory ammo available.
Report by Craig Arnzen, Area419.com
It’s easy to think about shooting your first precision rifle match and worry about all of the gear and trinkets that you may need to make it through. In reality, the old rules apply — keep it simple.
We wanted to put together for you a no-nonsense list of the Top Five Gear Items you need for your first match. This list focuses on the “must-have” items you’ll need for PRS-Style competitions.
1. A Rifle (That is Reliable and Sub-MOA Accurate)
Your rifle is the most obvious piece of kit, but we can give you a little more information. Most of the guys you’ll find out there are shooting 6.5 Creedmoor. Yeah, there are guys using .308 Wins and 6mm Dashers, but the 6.5 Creedmoor makes up more than half of the rounds shot in PRS competition, when looking at both national and club matches. Your comp rig needs to be mag-fed and shoot better than 1 MOA. It DOESN’T need to be better than 0.5 MOA (half-MOA). With most targets being 2-3 MOA in size, a half-MOA gun will do just fine. More accuracy is better of course, but you don’t need an exotic quarter-MOA rig to win.
[Editor’s NOTE: PRS does offer a Gas Gun division, but most guys start out with a bolt-action rifle, which will be less maintenance-intensive than an AR-platform rig.]
Muzzle brakes, like our Area 419 Hellfire, are also very popular as much of the PRS game is recoil management. If you can’t see your misses, you’re sure to have more of them.
The rifle also needs an optic with repeatable clicks and a reticle with Mil- or MOA-based hashmarks. The clicks can be either Mil system or MOA system (Mil is more common), so long as the click values match the reticle (i.e. you don’t want 1/4-moa clicks with a Mil-marked reticle). How much power do you need? Anything that zooms in the mid-teens will suffice. I could shoot a match with a fixed 12X scope and not feel disadvantaged. We love the Kahles K624i, if you’re looking for a suggestion.
Oh, and you’ll want a bipod — but the choice in bipod deserves a whole separate article by itself. Nothing wrong with starting out with a Harris swivel. Then you might look at different bipods on other competitors’ rifles for comparison.
2. Ammunition — Factory Ammo and Hand-loads
Good ammo is important, but as we discuss above, 0.5 MOA is good enough. Also, speed is great but it matters FAR less than you’d think. Drop can be calculated with precision, and distances are normally known, so a slightly flatter trajectory doesn’t really matter. Wind matters, but the difference you’ll find when eeking out that last 50 fps is very, very small.
Federal, Hornady, and Prime all make quality ammo that is widely used by shooters from local to national matches. Facebook photo by CReece.
Precision Handloads
If you want to run down the rabbit hole of finding that perfect ammo that shoots in the “twos” (0.2 MOA), get yourself an AutoTrickler and some of our billet aluminum accessories — you’ll love the setup.
3. A Versatile Support Bag
There are countless bag options. But there is ONE bag you’ll see everywhere, and for good reason. The Game-Changer from Armageddon Gear is aptly named. Many shooters use it as a barricade bag as well as a rear bag, meaning a guy could get away with using only this bag for an entire match. If you need another bag when you get there, ask someone in your squad, they’ll share. I promise.
4. Ballistics Calculator APP
All PRS/NRL shooters need reliable and accurate ballistic solutions. The software-enabled Kestrel is a very common item on the range, but you’ll also see lots of guys using mobile Apps such as Shooter or Applied Ballistics Mobile, and they have great results.
It’s also handy to have an armband or an item like the Hawk Hill data card holder for stages with various targets at differing ranges. Once the RO says “engage” and your mind stops working, you’ll appreciate having it written down.
5. Hearing Protection
PRS Competitors shoot with brakes and sometimes in enclosed spaces. That’s why you need serious hearing protection. We recommend NRR 33 earplugs, doubled up with Electronic Muffs to hear range commands. I have used the 33 dB NRR Mack’s foamies at matches for most of the last year, and the Howard Leight NRR 33 Max-1s are also very effective. The budget-priced (under $50) Howard Leight Impact Sport Electronic muffs work well, but premium electronic muffs may be more comfortable.
Growing in popularity are high-tech, in-ear digital units like the ESP Stealth. I have a set of linked ESP Steaths on the way and hope to evaluate them soon. These are supposed to be very good, but the ESP Stealths cost $2100.00 per pair!
Think we missed something? Have more questions? Let us know.
Have you tried IMR Enduron powders yet (IMR 4166, 4451, 4955, 7977, and/or 8133)? We’ve been impressed with what we’ve seen. IMR’s line of Enduron extruded powders offer excellent temp stability, reduced copper fouling, and good load density for many popular cartridges (such as .223 Rem, 6mmBR, .308 Win, .30-06, 300 WSM to name a few). Some of our Forum members have reported excellent results with IMR 4166 in the 6mmBR, Dasher, 6.5×47 Lapua and .308 Win. One member wrote: “in my 6.5×47… 4166 gives speeds and accuracy pretty much exactly the same as Varget.” And other shooters have observed reduced copper fouling with Enduron series powders, so IMR’s Enduron anti-fouling chemistry does seem to work.
IMR now offers five (5) Enduron powders: IMR 4166, IMR 4451, IMR 4955, IMR 7977, and IMR 8133. Shooters looking for good alternatives to hard-to-find extruded powders should definitely check out the Enduron line-up. Precision shooters will find an Enduron option well-suited to most popular precision cartridge types. For example, IMR 4166 is a good replacement for Hodgdon Varget (commonly used in the .223 Rem, 6mmBR and .308 Win), while IMR 4955 is a fine substitute for H4831 (favored by F-Open shooters for the .284 Win and 7mm WSM cartridges).
The Enduron Line-Up of Five Powders
IMR now offers five Enduron powders that cover a broad range of burn rates. They are suitable for a wide variety of cartridges, from small varmint cartridges all the way up to the .338 Lapua Magnum.
IMR 4166 possesses the fastest burn rate in the Enduron lineup. It is the perfect burn speed for cartridges such as .308 Win, 7.62mm NATO, 22-250 Rem and 257 Roberts. A versatile, match-grade propellant, IMR 4166 is comparable to Hodgdon® Varget.
IMR 4451 is a mid-range burn speed powder, ideally suited for cartridges such as .270 Winchester, .30-06 and 300 Winchester Short Magnum. This powder is comparable to Hodgdon H4350.
IMR 4955 is a medium burn speed powder, falling in between IMR 4451 and IMR 7977 in burn speed. It provides top performance in big game cartridges such as 25-06, 280 Remington and 300 Winchester Magnum. This powder is comparable to Hodgdon H4831.
IMR 7977 is a slower burn rate in the Enduron family. Loading density is perfect for magnums. This is a true magnum propellant yielding outstanding performance in .300 Winchester Magnum, 7mm Remington Magnum and .338 Lapua Magnum. IMR 7977 is comparable to Hodgdon H1000.
IMR 8133 IMR Enduron 8133 is the slowest burn rate in the Enduron family. Loading density is perfect for the very large magnums, including the 6.5mm and 7mm magnums. This is a true magnum propellant yielding outstanding performance in 6.5-300 Weatherby, .264 Win Mag, 28 Nosler and .300 Rem Ultra Mag, among other cartridges.
IMR Enduron Technology powders are sold in one-pound (1 lb) and eight-pound (8-lb) containers through quality retailers including Graf & Sons, Midsouth, and Powder Valley. Check frequently for current availability as these will sell out quickly after arrival. Also check your local sporting goods dealers for recent powder shipments.
Is factory 6.5 Creedmoor ammunition good enough to win a PRS or NRL competition? The answer is a resounding “YES” if we’re talking about Berger ammunition. Produced with Berger match bullets and premium Lapua brass, this Berger 6.5 ammunition demonstrated excellent accuracy, impressive velocity, and very good ES/SD numbers. When tested at 1000 yards with an MPA-stocked PRS rig with Rem 700 action, this ammo showed just half-MOA of vertical, and produced a group that would have been a 50-1X in F-Class competition. That’s quite impressive for a PRS rig.
This ammo test was performed by our friend Erik Cortina from Texas. Erik is a top F-Class competitor who also shoots tactical matches (for fun and glory). Erik recently built a new 6.5 Creedmoor with a Remington 700 action. Though this rifle sports a top-shelf MPA chassis and premium Kahles scope, Erik calls this his “budget build” because it has a plain Rem 700 factory action rather than the elite Borden actions he normally runs. Erik’s actions of choice are the Borden Mountaineer for PRS and Borden BRM-XD for F-Class.
Erik posted: “Shot my budget 6.5 Creedmoor today with Berger Bullets factory ammo. I shot five rounds over the chrono to get speed. I used BC info from the box and it all lined up properly. I adjusted my ECTuner to tune load and it took just 15 shots to get it shooting well. It’s simple with good components.”
This Berger factory ammo features Berger 130gr Hybrid OTM Tactical bullets. The Lapua 6.5 Creedmoor cases have a large rifle primer. You can see this ammo displays good velocity with Extreme Spread and Standard Deviation rivaling good hand-loads.
Cortina says the very accurate Brux barrel and razor-sharp 6-24x56mm Kahles scope help achieve this kind of outstanding performance at 1000 yards. Here are the key components for Erik’s latest PRS rig:
Barrel Tuner by Erik Cortina — Fits Behind Muzzle Brake
This rifle features a barrel tuner designed and crafted by Erik Cortina. You can the ECTuner alone, or, as you can see, the ECTuner can be fitted BEHIND a muzzle brake. Erik tells us: “The ECTuner allowed me to tune the barrel to my ammo rather than tuning the ammo for barrel as is done when reloading. With the tuner, there is no need to try different brands of ammo as they can all be tuned to shoot as good as possible in my rifle.”
MPA Chassis Configuration Guide
Erik’s “budget” PRS rifle employs a MasterPiece Arms (MPA) BA Competition Chassis with Rapid Adjustment Technology (RAT). This MPA Arms Video shows how to set up an MPA Chassis to suit the owner:
Here is the digital version of the SHOT Daily print magazine provided on site at SHOT Show by the NSSF. You can navigate page by page with the left/right white arrows in the gray box below. To quickly scan through the entire 64-page digital magazine, use the slide bar. When you find content you want to read, use the zoom control or click the FULL SCREEN brackets icon at lower right.
SHOT Daily Day 3 — 1/20/2022
CLICK Full Screen (brackets) icon to read.
There are two big feature articles you’ll want to read in this SHOT Daily Day 3 edition. On page 36 you’ll find a 6.5 Creedmoor Cartridge feature that covers the growth in popularity of this versatile mid-sized round. The 6.5 Creedmoor is now among the top three chamberings for new bolt-action rifles. On page 24 you’ll find a comprehensive guide to New Knives for 2022 from many manufacturers. There are some notable new ammo types being introduced this year including Hornady CX lead-free hunting ammunition. CCI is also offering new lead-free pistol ammo.
IMPORTANT: To read either story, click the full screen (brackets) icon in the gray box above and then zoom to the start page (page 36 for Optics, page 24 for Ammo).
OK, it’s the last day of 2021. Are you feeling lucky? If so, here is a chance to enter an end-of-year contest with an impressive Grand Prize. Primary Arms and outdoor media site GoWild have partnered with a precision bolt-action rifle giveaway, which runs through January 3, 2022. To enter the giveaway, visit the GoWild Giveaway Landing Page.
IMPORTANT: What is the downside to entering? Well, you have to provide a name and email. You WILL be put on a list to receive promotional emails until you request exclusion. If you do choose to enter, we recommend you do NOT use your primary personal or business email. Use a different email.
This giveaway includes everything needed to get started in long-range precision shooting. Here is the list of all products in the winning package:
Bergara B-14 HMR 6.5 Creedmoor Bolt-Action Rifle
Primary Arms Optics SLx 3-18x50mm FFP Scope
Seekins Precision 30mm 4-Cap Scope Rings
Seekins Precision 20 MOA Picatinny Rail
Harris Engineering S-BRM 6-9″ Swiveling Bipod
Viktos Perimeter 40L Backpack in Black Multicam
Under Armour Tactical All Season Jacket 2.0 and Enduro Cargo Pants
High Speed Gear Cobra 1.5″ Rigger Belt
Centered around a Bergara B-14 HMR 6.5 Creedmoor bolt-action rifle, this prize package can be an effective set-up PRS/NRL factory-class shooters. The Bergars B-14 rifle comes equipped with a 3-18x50mm FFP scope plus a Harris S-BRM 6-9″ Swivel Bipod. In addition, this giveaway comes with an apparel and gear package from Under Armour, High Speed Gear, and Viktos.
Bergara B-14 HMR 6.5 Creedmoor Field Test
Here is a good review of the Bergara B-14 HMR in 6.5 Creedmoor. The Precision Rifle Network team tested seven different types of 6.5 CM ammunition and recorded Velocity, SD, ES, and group size for each type.
About Primary Arms and GoWild This is the first major giveaway partnership between GoWild and Primary Arms. Founded in 2008, Primary Arms is a large vendor that carries over 15,000 products from 500+ manufacturers. Primary Arms Online carries a complete selection of rifles, handguns, tools, shooting gear, ammunition, and more.
GoWild is a free social community helping outdoor enthusiasts improve their skills, discover gear and earn rewards. GoWild members can share their stories without worry of censorship, find authentic gear reviews, store trophy logs and connect with local hunters, anglers and firearm enthusiasts.
On the 6.5 Creedmoor Facebook page we found an eye-catching Savage Model 10 BA Stealth. Rifle owner Derek P. has done some important upgrades, starting with a wicked, spiral-fluted McGowen barrel with red-painted flutes. The red theme was carried over to the chassis which combines fire-engine red with matte black in the middle. The scope rings and even the magazine were painted red to match as well. The whole effect is very striking, as you can see.
The barrel is a 29-inch 1:8″-twist McGowen. The optic is a 4.5-27x56mm Vortex Razor HD GenII with sunshade. That supper-stable rear sandbag is a Protektor DR Bag, one of our favorites. The front sandbag is also a Protektor. The front Rest is the new Protektor Aluminum Rest with Mariners Wheel. Look carefully and you’ll see a flat 2.5″-wide block on the underside of the forearm. That improves stability and tracking.
What we really like is the upgraded rear buttstock section. This is NOT standard by any means. Rifle owner Derek has fitted an aftermarket XLR Tactical Lite Buttstock that sits properly in that Protektor DR rear bag. This unit combines an adjustable buttpad with a nice cheek-rest (with upgraded pad from Tactical Works). And, very importantly, the XLR can be fitted with a “tactical bag rider” or you can easily make your own bag rider.
As the Savage 10 BA Stealth Comes from the Factory
This video shows a box-stock Savage 10BA Stealth. Note how different the stock buttstock/cheekpiece assembly is compared to Derek’s Red Hot Savage.
If you like accurate rifles and reactive targets, you’ll enjoy this 48-minute video from Shooting USA TV, which features long-range varmint silhouette competition in Texas, the Lone Star State. We have participated in these kind of matches on the West Coast — they are definitely a ton of fun. The sport combines the pure accuracy of benchrest competition with the fun of knocking down critter targets. These are smaller than standard silhouettes, so it’s quite a challenge to hit them at 300 yards and beyond.
In this episode, host John Scoutten competes with his 6.5 Creedmoor PRS rifle. He found that 1-MOA Coyotes offered plenty of challenge at 385 meters! Most shooters use benchrest-grade rifles with premium front rests.
Full 48-Minute Episode of Shooting USA featuring Texas Varmint Silhouette:
5″x4″ Hogs — 500 Meters
Chickens (on Swingers) — 600 Yards
Pigs (on Swingers) — 750 Yards
EDITOR: We strongly recommend you take the time to watch this Shooting USA feature — it shows some top-flight benchrest rifles, and also covers the origins of benchrest varmint silhouette in Pennsylvania. There are even some AccurateShooter Forum members on screen. John Scoutten also does nice job explaining the challenges of shooting this discipline with a PRS rig. We think any benchrest or tactical shooter will really enjoy watching this video.
Travis Frazier, who created steel targets with Field & Cave Outfitters, says shooters love the reactive targets: “The most exciting thing is seeing your hits — these [targets] really go airborne”. Yep, that’s the best thing about Varmint Silhouette matches — hits deliver instant gratification. Travis designs and produces these steel targets.
This Texas match features multiple target shapes, 10 at each distance: Tiny Prairie Dogs at 200m, 3″x3″ Armadillos at 300m; 3″x5″ Coyotes at 385m; 5″x4″ Hogs at 500m; Chickens (on swingers) at 600 yards; and Pigs (on Swingers) at 750 yards. Competitors are allowed 10 rounds and 10 minutes to hit each set of targets.
Good news for serious hand-loaders — a large selection of premium-quality Lapua brass is now IN STOCK at Creedmoor Sports and Grafs.com. You’ll find a wide variety of cartridge types available for purchase today at these two leading vendors. Check the lists below.
We’re happy to report that Lapua Brass is IN STOCK, because finding top quality reloading components (brass, bullets, powder, and especially primers) has been a major challenge over the past year. It looks like both Graf & Sons and Creedmoor Sports have received large shipments of Lapua cartridge brass recently. So if need good brass, check the availability list below, and then place your orders. Sorry, no 6mmBR, 6.5 Grendel, 6.5×55, 7mm-08, or .30-06 brass at either vendor right now.
As of 9:00 am on Saturday July 17, 2021, here are some of the rifle cartridge types we found in stock.
Lapua .220 Russian Brass $128.29
Lapua .223 Rem. Brass $68.99
Lapua 6mm Creedmoor Brass Small Primer Pocket $55.99 (50 ct)
Lapua .243 Win Brass $120.99
Lapua 6.5×47 Lapua Brass $134.99
Lapua 6.5 Creedmoor Brass Small Primer Pocket $103.99
Lapua .260 Rem Brass $120.99
Lapua .284 Winchester Brass $144.99
Lapua 7.62×39 Brass $85.99
Lapua 7.62x54R Russian Brass $158.99
Lapua 7x65R Brass $119.99
Lapua .300 Norma Magnum Brass $226.99
Lapua .338 Norma Magnum Brass $328.99
Lapua .338 Lapua Magnum Brass $321.99
CLICK HERE for Grafs.com Lapua Brass Sales Page
NOTE: On that page, items IN STOCK are listed first. You can Login to be notified when out-of-stock items are back in stock. Prices subject to change.
Today we feature a modern switch-barrel PRS chassis rifle set up for quick changes between 6mm Creedmoor and 6.5 Creedmoor barrels. The owner, Forum member Jeff Cosgrove (aka “Punkur67″) uses the 6 CM barrel for competition, favoring the reduced recoil over its 6.5 mm big brother. He does use the 6.5 CM barrel for practice (given its better barrel life). The 6.5 CM barrel also gives him the chance to shoot a variety of factory 6.5 Creedmoor ammo.
- Terminus Zeus action with Quick Change (QC) barrel option.
– 6mm Creedmoor Pre-Fit Bartlein Heavy Varmint 400MODBB barrel for matches
– 6.5 Creedmoor Pre-Fit Benchmark Heavy Palma barrel for training
– MPA BA Competition chassis with full weight kit
– Zero Compromise Optic ZCO 5-27x56mm FFP scope
– TriggerTech Diamond trigger
This rifle represents an evolution for Jeff. Each step along the way in his PRS journey, he has learned more about what he wants and needs in a competition rifle. And what you see here, from the $3760 ZC527 scope to his high-tech reloading equipment, represents pursuit of excellence. Jeff even created a modern, spacious man cave/reloading center in his new house (photos below).
Quick-Change Barrel System with Terminus Zeus QC Action
This rifle has two pre-fit barrels that work with the Terminus Zeus QC Action for fast and easy barrel swaps. To remove a barrel, you simply release two tension screws on the front of the action and then unscrew the barrel. To swap in a different pre-fit barrel, reverse the process and then tension the screws. The Terminus Zeus is 3-lug receiver with 60° bolt and integral recoil lug. Both the receiver and bolt are DLC-treated. Jeff reports this action is extremely smooth and has met all of his expectations. Some other Zeus features are threaded trigger pins for quick/easy trigger installation, and a roller-tipped cocking piece.
PRS Discipline Offers Fun, New Challenge for Long-Time Shooter
My name is Jeff Cosgrove, I live in Winchester, California and do commercial heating and air conditioning. I have shot for 20+ years but I found my interest in shooting was dwindling over time. I got somewhat bored with shooting paper at 100 yards or plinking cans out in the desert. About 18 months ago I decided I wanted to shoot long range. I picked up a used MPA in .300 Winchester Magnum and started shooting long range with a new buddy. That day I fell in love with guns all over again with more intensity than ever.
How I Got Started in PRS
With that new .300 WM I soon found my reloads were not up to my expectations (high ES/SD), so I purchased all new reloading hardware. One of my purchases was a used Benchsource Annealer. The guy I bought that from asked if I had ever tried PRS and he invited me to check out a match. So I went to a local PRS event as a spectator. I looked at many rigs on the firing line and took notes. By the end of the day I knew this was something I really wanted to do. I then acquired a used chassis rifle that I thought would work well for PRS. I went to a PRS match the following month but shot poorly.
After working with that first PRS rifle, a 6.5 CM with Stiller Tac30 action, MDT chassis, and Proof Carbon-wrapped barrel, I quickly learned that gun did not handle and balance the way I hoped.* It was too light in the front, the ergos were poor, and scope eye relief was not optimal. So I decided to build my own GEN 2 PRS rifle. This is the story of how I put together my new switch-barrel rig that I now use in competition.
PRS Rifle and Gear Selection — Learning What Works
Barrel availability was limited given the current shortages. Luckily I was able to obtain a 6mm Creedmoor pre-fit Bartlein Heavy Varmint 400MODBB from Southern Precision Rifles. The 6mm Creedmoor is notorious for being a barrel burner cartridge so I went with the special 400MODBB metal. Bartlein says that barrel life expectancy is 1.5 to 2 times longer than the standard 416 grade steel. I also purchased a 6.5 Creedmoor pre-fit Benchmark Heavy Palma barrel for training (Source: Straight Jacket Armory). With the Terminus Zeus quick change system I am able to swap from my match barrel to my trainer barrel in just a couple minutes. I loosen two set screws, unthread the barrel, thread the new barrel on, and torque the set screws to 10 inch-pounds. This also affords me caliber options in case I’m in a pinch for ammo. If I have some 6.5 CM loaded up and don’t have time to load 6mm Creedmoor for a match, then I’m covered.
For the trigger, I went with a TriggerTech Diamond Pro curve model. I have Timney, Jewell, and TriggerTech triggers in other rifles. I like them all but I liked the feel of the TT Diamond the best so that is what I used on this build. I set my triggers around 18-20 oz. — I am not a fan of ultra-light trigger pulls.
MPA BA Competition Chassis with Added Weight
I went with an MPA BA Comp chassis with full internal and external weight kit. I also have Gray Ops external weight on the handguard. I had the same chassis on my .300 WinMag and felt very comfortable with it. I took a PR1 class and found that, with a different gun, I had to force a comfortable hand position for proper trigger pull. After that class I grabbed my MPA and my hand fell in to the perfect position. I did not need to hunt or index my hand with the MPA. The built ARCA rail (RAT) lowered the rifles center of gravity more than my old setup with the ARCA rail bolted to the bottom of the handguard. With the current configuration, the rifle weighs in at 24 lbs. and balances three inches in front of the magwell. I now have the flexibility to add, subtract, or move approximately 6 lbs. of weight.
The Attraction of PRS/NRL Practical Competitions
I really enjoy PRS-style shooting because there seems to be a new challenge every time you compete — no matter what. With PRS I am shooting many different positions and ranges with the pressure of a stopwatch. This keeps things interesting for me. I have taken a few training classes to help establish good, clean fundamentals.
Jeff says it is hard to practice for the many unconventional shooting positions at PRS matches.
My biggest challenges so far have been: 1) building stable shooting positions that I have not practiced enough; 2) proper equipment selection; and 3) time management. Regarding the shooting positions — PRS/NRL is not like F-Class where you can always practice from one position. And it’s hard to practice for unusual set-ups (barriers and positions) you’ve not encountered before. Concerning equipment — you need some experience in the game to determine what really works best for you.
Innovative Zero Compromise Optic — Optimized for the Tactical Game
The scope is a Zero Compromise ZC527 (5-27x56mm FFP) with MPCT2 reticle. Zero Compromise Optic is a relatively new manufacturer, but their scopes are top-flight. The First Focal Plane ZCO has excellent glass that is extremely bright and clear. With a big 36mm main tube, the ZC527 offers 35 Mils Elevation and 21 Mils Windage adjustment. The field of view is 21 feet at 100 yards — one of the widest in the industry. The ZC527 also offers illuminated reticle and locking turrets. When I was at my first PRS match I looked through several different scopes. When I got behind a ZCO scope I knew this was what I wanted — the ZCO scope was super clear, super sharp, with very positive controls.
I put a protective wrap on the scope because with some of our PRS stages it is easy to scratch or dent the scope tube. You don’t want to bang up an expensive scope — the ZC527 retails for $3760.
Reloading for 6mm Creedmoor and 6.5 Creedmoor
When starting out with a new cartridge I like to search places like AccurateShooter.com and UltimateReloder.com for popular recipes used by knowledgeable shooters. I am all about paving your own way on certain things but with the consistency, higher cost, and limited supply of components these days I try to stick with the most common loads. I also want to limit barrel wear and get through load development quickly. I don’t want to chase loads for 300 rounds to ultimately land in the same place that so many other people have already found.
I start my new barrels with virgin brass and load three rounds at each charge weight in 0.2 grain increments. I put the most popular charge weight (for my chosen bullet) in the middle of my load range and load above and below to find a good node while paying close attention for pressure signs along the way. I use the 6.5 Guys spreadsheet (see below) to help analyze my results. With those results I like to re-test a narrower range with 5-10 rounds each charge weight in 0.2 grain increments. I again use the 6.5 Guys spreadsheet to make a final charge weight selection and then I move on to seating depth. I will load different depths to tighten the groups up.
Load Development Using 6.5 Guys Custom Spreadsheet
To hold and analyze my load development data I use the spreadsheet from 65Guys.com. It helps a ton with making a decision on your final load. This Excel spreadsheet works great and makes it simple to analyze your data. You can even copy and paste your chronograph data if your chrono logs on to a SD card.
In this 6.5 Guys video Steve provides an overview and tutorial for using the Excel load development analysis model that he has developed. The Excel Load Development Analysis Spreadsheet version 2.0 is FREE. Download from the 6.5 Guys Website.
In this video Steve explains some key statistical concepts for performing load data analysis. He also provides tips and guidance for determining the optimal load for your rifle as you analyze the load data you’ve collected.
New House, New Man Cave/Reloading Room
Jeff recently moved with his family into a great new house. One bonus of this move was that he upgraded from a cramped reloading area to a dedicated “Man Cave” that has ample space for his gun safes, multiple presses, and all his reloading components. Large upper and lower cabinets plus a dedicated “gun closet” provide plenty of storage. Read all about this move in this AccurateShooter Forum Thread.
Here is Jeff’s first reloading area years ago: “My first reloading setup was smashed in my two-bedroom condo so I had a very small bench that was very cluttered. I had to deal with the limited space I had but I made it work. Then in our first house I had a larger bench/cabinet, but it was still not ideal.”
Here is the new Man Cave in the new house — very open, spacious, with plenty of storage.
This animated GIF shows the new Man Cave move-in process start to finish:
Cortina says the very accurate Brux barrel and razor-sharp 6-24x56mm Kahles scope help achieve this kind of outstanding performance at 1000 yards. Here are the key components for Erik’s latest PRS rig:
This is the first major giveaway partnership between GoWild and Primary Arms. Founded in 2008, 
Good news for serious hand-loaders — a large selection of premium-quality Lapua brass is now IN STOCK at 
