Many hunters and precision rifle competitors use muzzle brakes because these ported devices reduce felt recoil significantly. That make s real difference getting back on target for quick follow-up shots. While many rifle owners appreciate the benefits of muzzle brakes, they may also neglect their brakes, allowing hard carbon and powder residue to build up. Not good. You should regularly clean your muzzle brake to remove fouling and carbon build-up.
As Mark Edgreen posted: “Carbon build up on the crown and in the brake is a recipe for poor accuracy.” And another gunsmith reported that customers complained about guns that “shot out way too early” but they only needed to have the brakes cleaned.
Gunsmith and PRS/NRL competitor Jim See recently reminded his Facebook Fans about the importance of cleaning muzzle brakes: “How many times do I have to say it? You need to maintain your rifles. Clean your muzzle brakes people!”. Jim, who runs Elite Accuracy LLC, notes that hard carbon build-up in brakes can definitely harm accuracy. Look at this example:
Muzzle Brake Cleaning Methods
There are various methods for cleaning a brake, we list a variety of techniques, but we would start with NON-corrosive ultrasound. You’ll want to remove the muzzle device before doing these tasks.
1. Use Ultrasonic Cleaning Machine with cleaning solution. This may be the most efficient method: “I place my brake in the ultrasonic cleaner. Shiney as new.” (Jim Moseley).
2. Spray with commercial Carb Cleaner and brush. Then apply anti-corrosion coating.
3. Soak in half hydrogen peroxide and half vinegar. Suggestion: “Let sit over night and carbon melts off. Brush remaining carbon off, rinse and put the brake back on.” Apply anti-corrosive before mounting.
4. Soak in 50/50 solution of water and white vinegar and brush. (Be sure to apply anti-corrosion coating, such as Eezox, after soaking).
5. Tumble in liquid solution with stainless pins. Comment: “Comes out slightly faded, but perfectly clean on stainless, non-painted brakes though.” Warning — extended tumbling could affect threads of screw-on brakes. Also, tumbling can possibly harm painted or Cerakote finishes.
Gunsmithing Tip: By fitting the muzzle brake so that the barrel crown is slightly forward, it is easier to wipe carbon fouling off the end of the barrel. See photo:
The movie “The Patriot” gave us the phrase “Aim small, miss small”. While that’s a good mantra, aiming strategies for long-range competition are a bit more complicated, as this article explains…
U.S. F-Class Nationals Start Sunday, September 15th!
The U.S. Mid-Range and Long Range Nationals kick off September 15th at the NRA Whittington Center near Raton, New Mexico. Here are some tips that can help F-TR and F-Open shooters aim more precisely, and achieve higher scores. F-Class ace Monte Milanuk reviews reticle choices and strategies for holding off.
In our Shooters Forum, one newcomer wanted some advice on selecting a reticle for F-Class optics. He wondered about the advantage of Front (first) Focal Plane (FFP) vs. Second Focal Plane scopes and also wondered if one type of reticle was better for “holding off” than others.
In responding to this question, Forum regular Monte Milanuk provided an excellent summary of aiming methods used in F-Class. For anyone shooting score targets, Monte’s post is worth reading:
Aiming Methods for F-Class (and Long-Range) Shooting — by Monte Milanuk
F-Class is a known-distance event, with targets of known dimensions that have markings (rings) of known sizes. Any ‘holding off’ can be done using the target face itself. Most ‘benefits’ of Front (first) focal plain (FFP) optics are null and void here — they work great on two-way ranges where ‘minute of man’ is the defining criteria — but how many FFP scopes do you know of in the 30-40X magnification range? Very, very few, because what people who buy high-magnification scopes want is something that allows them to hold finer on the target, and see more detail of the target, not something where the reticle covers the same amount of real estate and appears ‘coarser’ in view against the target, while getting almost too fine to see at lower powers.
Whether a person clicks or holds off is largely personal preference. Some people might decline to adjust their scope as long as they can hold off somewhere on the target. Some of that may stem from the unfortunate effect of scopes being mechanical objects which sometimes don’t work entirely as advertised (i.e. one or two clicks being more or less than anticipated). Me personally, if I get outside 1-1.5 MOA from center, I usually correct accordingly. I also shoot on a range where wind corrections are often in revolutions, not clicks or minutes, between shots.
Some shooters do a modified form of ‘chase the spotter’ — i.e. Take a swag at the wind, dial it on, aim center and shoot. Spotter comes up mid-ring 10 at 4 o’clock… so for the next shot aim mid-ring 10 at 10 o’clock and shoot. This should come up a center X (in theory). Adjust process as necessary to take into account for varying wind speeds and direction.
Others use a plot sheet that is a scaled representation of the target face, complete with a grid overlaid on it that matches the increments of their optics — usually in MOA. Take your Swag at the wind, dial it on, hold center and shoot. Shot comes up a 10 o’clock ‘8’… plot the shot on the sheet, look at the grid and take your corrections from that and dial the scope accordingly. This process should put you in the center (or pretty close), assuming that you didn’t completely ignore the wind in the mean time. Once in the center, hold off and shoot and plot, and if you see a ‘group’ forming (say low right in the 10 ring) either continue to hold high and left or apply the needed corrections to bring your group into the x-ring.
Just holding is generally faster, and allows the shooter to shoot fast and (hopefully) stay ahead of the wind. Plotting is more methodical and may save your bacon if the wind completely changes on you… plotting provides a good reference for dialing back the other way while staying in the middle of the target. — YMMV, Monte
We first featured this story in 2010, but the results of this rimfire ammo test have been of such widespread interest that we try to bring the test to readers’ attention every year.
In 2010, the staff of AccurateReloading.com Forum completed a massive .22LR Rimfire Ammunition Testing Project. Some 55 different types of ammo were tested, using a highly-accurate Swiss-made Bleiker rifle, with a 2-stage trigger. All ammo varieties were tested at 50 yards, 75 yards, and 100 yards, shooting five, 5-shot groups at each distance. Though these tests were completed some time ago, many readers have requested a “reprint” of the ammo rankings, so we’ve republished this data below.
The results are fascinating to say the least (and perhaps eye-opening). The tester observed: “I got some amazing groups, and some which are, frankly, absurdly bad! This has re-enforced what I had experienced with 22 ammo in the past — that is being consistently inconsistent.”
While we strongly caution that .22LR rimfire ammo may work well in one gun and not another, and ammo performance can be improved through the use of barrel tuners, the AccurateReloading.com research provides invaluable guidance for smallbore shooters. Overall, the testers burned through over 4,000 rounds of ammo, and you can see the actual test targets online. To read all the test reports, and view target photos visit AccurateReloading.com.
0.162 Eley Tenex Ultimate EPS
0.164 Lapua Midas Plus
0.177 Lapua Polar Biathlon
0.187 Eley Match EPS
0.193 Eley Match
0.203 Lapua Midas M
0.215 Lapua Center X
0.216 Western Value Pack
0.229 Lapua Signum
0.241 Lapua Master L
0.243 Eley Pistol Match
0.256 Olin Ball
0.256 Akah X-Zone
0.261 Lapua Midas L
0.261 Lapua Master M
0.263 Eley Tenex Semi Auto
0.270 Lapua Super Club
0.272 Eley Tenex
0.303 Lapua Standard Plus
0.312 CCI Standard Velocity
0.319 RWS R 50
0.319 Eley Standard
0.328 SK High Velocity
0.339 Eley Club Xtra
0.340 Winchester T22
0.356 Federal Champion
0.362 Eley Subsonic HP
0.371 CCI Mini Mag
0.376 Federal American Eagle
0.377 Norinco Target
0.380 Sellier & Bellot Club
0.384 Eley Club
0.387 Eley Sport
0.388 Totem
0.392 Swartklip Match Trainer
0.398 Federal Gold Medal
0.403 Swartklip HV
0.409 Eley Match Xtra Plus
0.424 Sellier & Bellot Std
0.443 Remington Target
0.461 Lapua Crow HP
0.475 Eley Silhouex
0.479 Magtech
0.498 Eley High Velocity
0.513 Winchester Super X
0.516 Kassnar Concorde
0.539 CCI Blazer
0.560 Winchester Supreme Pistol
0.576 Norinco Pistol Revolver
0.593 SK Standard
0.611 Sellier And Bellot HP
0.626 SK Standard HP
0.686 Logo HV
0.956 Pobjeda Target
0.274 Lapua Center X
0.283 Lapua Standard Plus
0.295 Eley Tenex Ultimate EPS
0.307 Lapua Midas M
0.329 Lapua Master M
0.346 Eley Match
0.373 Lapua Polar Biathlon
0.399 RWS R 50
0.432 Lapua Midas L
0.448 Eley Tenex Semi Auto
0.467 Eley Match EPS
0.474 Lapua master L
0.491 Eley Match Xtra Plus
0.494 CCI Standard
0.496 Eley Subsonic HP
0.507 Eley Sport
0.512 Federal American Eagle
0.513 SK High Velocity
0.514 Eley Standard
0.516 Eley Tenex
0.516 Lapua Crow HP
0.532 Western Value Pack
0.533 Fed. Champion Target
0.535 Lapua Midas Plus
0.564 Akah X Zone
0.566 Olin Ball
0.573 Eley Club Xtra
0.616 Lapua Signum
0.631 Winchester T22
0.639 Swartklip HV HP
0.641 Eley Club
0.642 Eley Silhouex
0.647 CCI Mini Mag
0.679 Eley Pistol Match
0.682 Swartklip Match Trainer
0.690 Federal Gold Medal
0.692 Remington HV
0.703 Lapua Super Club
0.720 Winchester Super X
0.738 Eley High Velocity
0.759 Kassnar Concorde
0.765 Sellier And Bellot Club
0.770 Winch. Supreme Pistol
0.770 Norinco target
0.775 CCI Blazer
0.802 Norinco Pistol Revolver
0.841 LVE Logo HV
0.855 Sellier & Bellot Std
0.871 Magtech
0.923 Sellier & Bellot HP
0.934 SK Standard HP
1.017 Remington Target
1.257 Totem Standard
1.442 SK Standard
1.578 Pobjeda target
0.455 Eley Match
0.510 Lapua Midas Plus
0.549 Lapua Midas M
0.611 Lapua Polar Biathlon
0.611 Eley Tenex Ultimate EPS
0.619 Eley Match EPS
0.622 Eley Club
0.630 Lapua Center X
0.631 RWS R50
0.679 Eley Tenex Semi Auto
0.694 Lapua Midas L
0.729 Eley Tenex
0.739 Lapua Master L
0.753 Lapua Super Club
0.785 Lapua Master M
0.831 Eley Sport
0.851 Eley Match Xtra
0.859 Lapua Standard Plus
0.867 Akah X-Zone
0.877 Eley Pistol Match
0.907 Norinco Target
0.924 Eley Silhouex
0.939 CCI Standard
0.952 Eley Subsonic HP
0.963 Magtech
0.970 Olin Ball
0.978 Kassnar Concorde
0.995 Eley Club Xtra
1.009 Western Value Pack
1.032 Federal Champion
1.087 Norinco Pistol Revolver
1.100 CCI Mini Mag
1.112 Lapua Crow HP
1.143 Winchester T22
1.142 Federal Gold Medal
1.144 federal American Eagle
1.156 Swartklip Hollo Point
1.165 Lapua Signum
1.170 Swartklip Match Trainer
1.175 Fed. Champion Value Pk
1.182 SK high Velocity
1.201 Totem
1.224 Winchester Super X
1.358 Eley Standard
1.367 Remington High Velocity
1.375 CCI Blazer
1.414 Eley High Velocity
1.450 Remington Target
1.504 LVE Logo
1.813 SK Standard
1.879 S&B Club
1.947 S&B Hollow Point
2.073 SK Standard HP
2.221 S&B Standard
2.266 Pobjeda Target
EDITOR: Note to the trolls, whiners, and nay-sayers. Yes, this test is nearly a decade old. Yes, some newer types of ammo are missing. Yes, it would be nice to shoot the ammo in other rifles (we all know that different rifles can have different ammo preferences). That said, this is still the most comprehensive, thorough rimfire ammunition test ever conducted and the results are invaluable. We are grateful that the AccurateReloading.com team put the time and effort into this “Mother of All Rimfire Ammo Tests”. The rimfire shooting community should acknowledge AccurateReloading.com’s testers for their hard work.
One of the great thing about shooting is that marksmanship is one of the few sports where physically-challenged persons can compete at the highest level — with some provisions for wheelchair access and mobility. For example, in the world of F-Class competition, Matt Schwartzkopf is one of the best in the nation. Matt, a rangemaster at Ben Avery in Arizona, is a double amputee (below the knee). He hasn’t let that challenge stop him. He has been a Top-10 finisher at major F-Class matches, and was chosen to shoot with F-TR Team USA.
F-TR Team USA member Matt Schwartzkopf is a double amputee below the knee, having had his lower legs removed due to a birth defect. That hasn’t held him back. Matt is an inspiration to us all. He told us: “This condition has not held me back from anything.” Jokingly, he added, “I may not have ‘a leg to stand on’, but that doesn’t mean I can’t still shoot 10s and Xs at 1000.” Matt is living proof that competitive shooting is a sport for all individuals — young and old, able-bodied and physically challenged.
Matt isn’t just a talented shooter — he runs range operations at Ben Avery in Arizona. During a major match, Matt can be seen supervising the firing line, organizing pit crews, and posting match results.
New USA Nationwide Adventure Database for Adaptive Shooters
Here’s a great new opportunity for shooters and sportsmen with physical limitations. The NRA has created a nationwide database of hunting and fishing adventures for individuals with disabilities. There are programs throughout the country with 45+ organizations such as Buckmasters, Freedom Hunters, Hope Outdoors, Hunting with Heroes, and Safari Club International.
“Venturing into the outdoors has long been acknowledged as healing for the body and soul”, said NRA National Adaptive Shooting Programs Manager Dr. Joe Logar, PT, DPT. “These benefits can be even more profound for someone experiencing an illness, injury, or disability.”
NRA’s Hunter Services and Adaptive Shooting Programs have maintained a list of organizations offering people with disabilities outdoor opportunities. Now available in a searchable database, any adaptive shooter can easily choose from adventures such as guided whitetail hunts, chartered fishing trips, and accessible hiking trails anywhere across the country. To find a program, visit the NRA Adaptive Shooting Program’s Hunting/Fishing Trip Database.
NRA Resources for Adaptive Shooting Events
The NRA Adaptive Shooting Program also provides information for organizations planning an event to include person with disabilities. Events may be organized by veterans’ groups, rehabilitation facilities, and gun clubs. For more information visit AdaptiveShooting.nrahq.org.
Adaptive Shooting Programs in the United Kingdom
Across the pond, the National Rifle Association of the United Kingdom (NRAUK) also has adaptive shooting programs. The NRA.ORG.UK website has a wealth of information for disabled shooters.
The NRAUK states: “There are many different types of target shooting available for people to try in Great Britain. Some of them are readily accessible to disabled people, others less so. Also, shooting clubs and facilities do not all cater for every discipline; some only offer one, whilst larger complexes can cater for many of them. The only place in the country where almost all disciplines can be tried is Bisley Camp in Surrey. Access to the outdoor ranges is being improved all the time, although most are already accessible.
If the disciplines that you particularly fancy are not suitable for your type of disability at the moment, or are not currently available in your area, do not give up hope! The key skills for target shooting are very similar for all disciplines, so you could start with a different but similar option, learn those key skills, and take up your first choice when it is available to you.”
Making Ranges Suitable for Disabled Shooters
The latest edition of NRA Club Connections magazine has a feature on Adaptive Shooting. This article explains how range owners can make their lines of fire more accessible with the addition of a simple mat.
Can’t get enough gun content on your home computer? Now you can stream informative audio broadcasts to your mobile device. In addition to its popular weekly TV shows, Shooting USA now offers podcasts on gun topics. These podcasts feature interviews with ace shooters, notable gunsmiths, and leading firearms industry executives. There are now 141 Shooting USA Podcast episodes available for streaming. Or you can download a podcast to your mobile device for later listening. All Shooting USA Podcast content is free. Use these links to access all Shooting USA Podcasts (123 audio shows):
Now you can listen to timely and entertaining Shooting USA Podcasts, hosted by Jim and John Scoutten. They are available on both Podbean and iTunes.
Here are five of our favorite Shooting USA Podcasts. These include interviews with G.A. Precision owner George Gardner, legendary shooter Jerry Miculek, and ace pistolero Max Michel, who may be the fastest handgunner on the planet. Click each graphic to launch the PodBean player page for that Podcast.
Watch Max Michel Speed Drill (This Guy is Blazing Fast!)
The New 6GT Cartridge for Precision Rifle Competition
Report by Vu Pham
Earlier this year I was ready to build a 6 Dasher when I saw a lot of buzz on the interwebs about a new caliber George Gardner (Owner of GA Precision) and Tom Jacobs (Owner of Vapor Trail Bullets) designed, the 6GT. After some research and talking to George, I ditched the 6mm Dasher build and had GA Precision build me a 6GT on a GAP Templar action I already had in the safe. The reasons to try the 6GT in a new PRS-style rig were as follows:
1. Push a 110-115 grain class bullet at 2880-2930 FPS safely in the Sacramento heat.
2. Achieve a load that is reliable and predictable. The caliber must be easy-to-tune and predictable from barrel to barrel. I don’t want to spend weeks developing a new load each time I spin on a fresh barrel.
3. Be able to run the same mag in all my guns without having to tweak or use mag kits. The round must feed from AICS and AW magazines without major tweaking or hiccups.
4. Get good barrel life. The barrel needs to go 2200-2500 rounds with match-grade reliability and accuracy.
5. Have a competitive cartridge with the least possible recoil without sacrificing too much performance down range, compared to bigger options like the 6mm Creedmoor.
6GT feeding from un-modified magazines has been flawless in all the rifles we tested. The 6GT feeds so well, I sometimes have to do a press check to ensure there is a round in the chamber.
On paper the 6GT seemed like the perfect cartridge for PRS- and NRL-style competition. It has the low recoil of a 6 Dasher, with good feeding and mag compatibility. With the 6GT, a competitor can push 105gr bullets at 3000+ FPS or run heavier bullets at 2800-2900+ FPS.
Knowing that I would initially have to make my own 6GT brass and do quite a bit of load development, I enlisted the help of Dan Bertocchini with CS Tactical. Dan has a lot more experience with wildcats and is the man when it comes to this type of data gathering. He has been running a 6 Dasher for a few years so I was curious how he would compare the 6GT to his 6 Dasher.
Quick Summary: “I am really digging the 6GT and the capabilities it offers. It can launch 103gr Vapor Trails at 3000+ FPS or lob heavy 115gr DTACs in the low-to-mid 2900s comfortably. I think we will see this cartridge go mainstream in PRS/NRL-style competition in 2020.” — Vu Pham
The new 6GT Cartridge Was Tested in Three (3) Tactical Rifles:
Rifle 1: Vu’s 6GT 1.0
Builder: GA Precision
Action: Left Hand GAP Templar (large firing pin)
Barrel: Bartlein 7.7 Twist finished at 26″ with a 419 Hellfire Brake
Stock: KMW Sentinel
Optic: Vortex Razor Gen II 4.5-27x56mm EBR-7C MRAD
Bi-Pod: Harris
Trigger: Timney Calvin Elite
Magazines: AICS and AW
Support Bag: Wiebad Fortune Cookie
Rifle 2: Vu’s 6GT 2.0
Builder: Rubicon Precision
Action: Impact Precision 737
Barrel: Bartlein 7.0 Twist finished at 27″ with a 419 Hellfire Brake
Stock: XLR Industries Envy Chassis
Optic: Vortex Razor Gen II 4.5-27x56mm EBR-7C MRAD
Bi-Pod: Harris with Henderson Arca adapter
Trigger: Trigger Tech Diamond
Magazines: AICS and AW
Support Bag: Wiebad Fortune Cookie
Rifle 3: Dan’s 6GT
Builder: CS Tactical
Chambered by: Rubicon Precision
Action: Lone Peak Arms Fusion
Barrel: Proof 7.0 Twist finished at 28″ with a Muzzle Brake and More Brake
Stock: XLR Industries Envy Chassis
Optic: Minox ZP5 5-25x56mm MR4
Bi-Pod: Arca Cyke Pod (PRS)
Trigger: Trigger Tech Diamond
Magazines: MDT
Support Bag: Armageddon Gear OG Game Changer, Waxed Canvas
Alpha Munitions Pre-Production 6GT Brass George Gardner was kind enough to send us 50 pieces of Pre-Production Alpha 6GT brass for preliminary testing. Like the cases I formed from 6.5×47 Lapua brass, the Alpha 6GT brass will use a small rifle primer. Price from Alpha Munitions should be $1.15 per case, which is on par with Alphan’s other product line.
The first 7000 pieces of Alpha 6GT brass sold before I could even get my hands on any! The bigger batch of production brass is due later this year. To pre-order the brass, CLICK HERE.
The major difference between 6.5×47 Lapua-formed brass and Alpha 6GT brass is the case capacity. Alpha 6GT brass has 1.5 to 1.7 grains more case capacity. When a piece of 6.5×47 Lapua brass is formed into a 6GT, the walls of the case now become the shoulder and part of the neck. In a normal piece of brass, the shoulder and neck are typically thinner because of the thickness of the brass tapering from the body to neck.
While the cartridge design was optimized for Hodgdon Varget, the extra case capacity of the Alpha 6GT brass opens the door to Hodgdon H4350 (my favorite powder) and Alliant Reloder 16.
Test Results with Alpha Munitions 6GT Brass
Initial test results were as expected from a premium brass-maker. Dan and I both got excellent Standard Deviations and Extreme Spreads over my MagnetoSpeed V3 and his LabRadar. This string below was with 112gr Barnes Match Burners and 33.8 grains of Varget. Can’t complain about a 3 FPS Extreme Spread!
Yes, H4350 Works with the Alpha Munitions Brass
Personally, I prefer running Alpha 6GT brass with H4350 rather than Varget pushing a heavier bullet. H4350 burns slower and cleaner which should equate to better barrel life. The Lapua-formed 6GT cases just do not have the capacity to reach the cartridge’s full capability with the slower burning powders.
Is the 6GT cartridge accurate? Definitely. Here is a 5-shot group at 600 yards shot by Dan. This was Alpha 6GT brass, with Hodgdon H4350 pushing Barnes 112gr Match Burner bullets.
And here is a 4-shot, 600-yard group with reformed 6.5×47 Lapua brass, using Varget powder under a Barnes 112gr Match Burner.
6GT Stress Test — Don’t Try this at Home!
Dan and I also did a “destruction test” to see how the Alpha 6GT brass would hold up when competitors push the cartridge to its limits. Please note that this is PRE-PRODUCTION brass and Dan and I probably exceeded max load for the majority of the duration of this test. Using Varget powder, we pushed 115gr DTACs at 2950+ FPS on a pretty hot day. We ran the charge weight up until the bolt was hard to lift.
Using this very hot charge, we were able to get 14 firings before the primer pocket failed. That is pretty solid considering that this brass was a pre-production sample that Alpha said did not meet its primer pocket design requirements. With these results, I think a shooter pushing 110-115 grain class bullets in the low 2900s will get 16 to 20 firings from a piece of brass.
Is the GT here to stay?
All signs are pointing to “Yes”. Dies are readily available from Hornady, RCBS, and Redding. Chamber reamers are being produced by PT&G and JGS that can be purchased through GA Precision.
Alpha Munitions is hard at work getting quality brass to the shooters. Quite a few people have already chambered up 6GT barrels before they even have brass in hand. I think we will see this cartridge go mainstream in PRS/NRL-style competition in 2020. With Alpha Munitions production brass almost ready to hit the shelves, I think we will see a lot more data come in from the field by the end of this year.
The Verdict — The 6GT Is Looking Great So Far
I am really digging the 6GT and the capabilities it offers. It can launch 103gr Vapor Trails at 3000+ FPS or lob heavy 115gr DTACs in the low to mid 2900s comfortably. George Gardner has texted me some pictures of very impressive groups pushing an 115gr DTAC at 3000 FPS with Alliant Reloder 16 (a very temp-stable powder with a burn rate close to H4350). That being said, if a guy wanted to push that type of speed and bullet weight, the 6mm Creedmoor is a better solution in my opinion. So far my “go to” 6GT load is a 112gr Barnes Match Burner at 2900 FPS. My other favorite load is a Hornady 108gr ELDM at 2970 FPS.
I think the down-range performance of the 6GT over a 6mmBR and the 6BR variants will be valuable on those days where shooting conditions are not as perfect. Recoil is about the same as the 6BR variants (6BRA, 6 Dasher etc.), but noticeably less than a 6mm Creedmoor. The extra energy down range will make a spotter’s job a bit easier when targets extend beyond 800 yards.
Forming GT Brass from Lapua 6.5×47
Before the new Alpha Munitions brass was available, I tested the cartridge using 6GT made from parent Lapua 6.5×47 Lapua brass necked-down and reformed. George Gardner walked me through the process of forming 6GT brass out of Lapua 6.5x47L. The process is time-consuming and is a huge PITA even with the correct tools. More detailed instructions can be found on my 6GT thread on the AccurateShooter Forum. READ Forum Thread HERE.
Here is a photo of what the brass looks like going through the forming/trimming process.
Left to right: 6.5×47 Lapua brass, sized with the 6GT bushing die with a .266 bushing, chopped/trimmed and turned, and fired-formed.
The formed-from-Lapua 6GT brass performed well and is a good option if one has the time and desire, but I’ll be moving over to factory Alpha Munitions brass once it is readily available.
6GT Tested at 1000 Yards
After seeing what Tom Jacobs is doing with his benchrest gun running Alpha Munitions brass, there is no doubt the 6GT is plenty capable out to 1000 yards and beyond. I have a feeling the Benchrest and F-Open guys are going to dig this new 6mm cartridge as well, at least for 600 yards. Note, in this photo it appears Shot #5 is under a paster, but that might just be a Ballistic-X software input error, meaning that this is actually a 4-shot group. Either way it is still impressive.
“The overturning moment MW tends to rotate the bullet about an axis, which goes through the CG (center of gravity) and which is perpendicular to the plane of drag….
Ruprecht Nennstiel, a forensic ballistics expert from Wiesbaden, Germany, has authored a great resource about bullet behavior in flight. Nennstiel’s comprehensive article, How Do Bullets Fly, explains all the forces which affect bullet flight including gravity, wind, gyroscopic effects, aerodynamic drag, and lift. Nennstiel even explains the rather arcane Magnus Force and Coriolis Effect which come into play at long ranges. Nennstiel’s remarkable resource contains many useful illustrations plus new experimental observations of bullets fired from small arms, both at short and at long ranges.
Shadowgraph of .308 Winchester Bullet
A convenient index is provided so you can study each particular force in sequence. Writing with clear, precise prose, Nennstiel explains each key factor that affects external ballistics. For starters, we all know that bullets spin when launched from a rifled barrel. But Nennstiel explains in greater detail how this spinning creates gyroscopic stability:
“The overturning moment MW tends to rotate the bullet about an axis, which goes through the CG (center of gravity) and which is perpendicular to the plane of drag, the plane, formed by the velocity vector ‘v’ and the longitudinal axis of the bullet. In the absence of spin, the yaw angle ‘δ’ would grow and the bullet would tumble.
If the bullet has sufficient spin, saying if it rotates fast enough about its axis of form, the gyroscopic effect takes place: the bullet’s longitudinal axis moves into the direction of the overturning moment, perpendicular to the plane of drag. This axis shift however alters the plane of drag, which then rotates about the velocity vector. This movement is called precession or slow mode oscillation.”
Raise Your Ballistic IQ
Though comprehensible to the average reader with some grounding in basic physics, Nennstiel’s work is really the equivalent of a Ph.D thesis in external ballistics. You could easily spend hours reading (and re-reading) all the primary material as well as the detailed FAQ section. But we think it’s worth plowing into How Do Bullets Fly from start to finish. We suggest you bookmark the page for future reference. You can also download the complete article for future reference and offline reading.
Shoot 101 Quiz
How much of an expert are you when it comes to firearms and ballistics? Test your knowledge with this interactive test. Guns & Ammo magazine created a series of features called Shoot 101. These articles provide “how to” information about shooting, optics, and outdoor gear.
On the Guns & Ammo website, you’ll find the Shoot 101 Ballistics Quiz. The 15 questions are pretty basic, but it’s still fun to see if you get all the answers correct.
You don’t need a lot of technical knowledge. And it’s not all about flight ballistics. Roughly a third of the questions are about projectile types and bullet construction. Note, for some reason the layout doesn’t show all the possible answers at first. So, for each question, be sure to scroll down using the blue scroll bar on the right.
We know that many of our readers will soon travel by air to attend major matches in Raton, New Mexico. The Spirit of America Match runs September 7-13, and the F-Class Mid-Range and Long-Range Nationals follow September 15-22. If you’ll be venturing to Raton, or to another destination by air in the weeks ahead, you need to be careful when transporting firearms through airports both in the USA and in other countries. It is important that you comply with all Homeland Security, TSA, and Airline policies when transporting guns and ammunition. Following the rules will help ensure you (and your gear) make it to your destination without hassles, delays or (God forbid), confiscations.
The NRA F-Class Mid-Range Nationals (Sept. 15-18) and Long Range Nationals (Sept. 19-22) will be held at the NRA Whittington Center 1000-Yard Range in Raton, New Mexico.
Good Advice from an Airport Police Officer
To help our readers comply with rules and regulations for air travel, we offer these guidelines, courtesy “Ron D.”, a member of our Shooters’ Forum. Before he retired, Ron D. served as a Police Officer assigned to Chicago’s O’Hare airport. Here Ron offers some very important advice for shooters traveling with firearms and expensive optics.
First, Ron explains that airport thieves can spot bags containing firearms no matter how they are packaged: “Don’t think you’re safe if your guns are placed in cases designed for golf clubs or trade show items. Baggage is X-Rayed now and cases are tagged with a special bar code if they contain firearms. It doesn’t take long for bad guys to figure out the bar coding for firearms.”
Carry-On Your Scopes and Expensive Items
Ron advises travelers to avoid placing very expensive items in checked baggage: “When traveling by air, carry on your rangefinder, spotting scope, rifle scope, medications, camera, etc. You would be surprised at the amount of people that carry-on jeans and shirts, but put expensive items in checked baggage. Better to loose three pairs of jeans than some expensive glass.”
Mark Bags to Avoid Confusion
Ron notes that carry-on bags are often lost because so many carry-on cases look the same. Ron reports: “People do accidentally remove the wrong bag repeatedly. I frequently heard the comment, ‘But it looks just like my bag.’ When de-planing, keep an eye on what comes out of the overhead that your bag is in. It’s easy to get distracted by someone that has been sitting next to you the whole flight. I tie two streamers of red surveyors’ tape on my carry-on bag.” You can also use paint or decals to make your carry-on bag more distinctive.
General Advice for Air Travelers
Ron cautions: “Keep your hands on your items before boarding. One of the most often heard comments from theft victims was, ‘I just put my computer down for a minute while I was on the phone.’ Also, get to the baggage claim area quickly. If your family/friends can meet you there, so can the opportunists. Things do get lost in the claim area. Don’t be a Victim. Forewarned is forearmed.”
Important TSA Tips on Firearms and Flying
Choosing a Rifle Transport Case
Ron advises: “Buy the best [rifle case] that you can afford. Don’t cry when your $3,000+ Benchrest rifle has a cracked stock or broken scope. Think about what it would be like to travel across the country (e.g. to Montana or the Cactus Classic) and arrive with a damaged rifle. Remember the Samsonite commercial. (For you younger shooters, it shows a monkey throwing the suitcase around in his cage at the zoo.) Baggage handling is NOT a fine art. There is no guarantee that your rifle case will be on top of all the other baggage. Then there is shifting of baggage in the belly of the plane. Ponder that for a while. Rifle and pistol cases must be locked. It doesn’t take a Rocket Scientist to figure out that a simple pry tool will open most case locks. There is not much that you can do to disguise a rifle case. It is what it is, and opportunists know this. Among thieves, it doesn’t take long for the word to get around about a NEW type of case.”
This Plano Double Scoped Rifle Case offers the functionality and durability of an SKB-type hard case for HALF the money. This is now just $111.64, while the equivalent SKB is around $240.00.
Are you looking to get started in PRS and NRL practical precision rifle competition? Or perhaps you’d like to advance your skill set so you can place higher in big matches (and get your hands on some of those prize table items)? Of course there is no substitute for trigger time in the field, but there ARE some great print resources. These four books can help you select the right equipment, improve your shooting skills, make better wind calls, increase your fitness level, and develop a more efficient between-match training program.
1. IMPACT! — Training and Preparing for Precision Rifle Matches
Rodney Maze, $19.99 Paperback, $4.99 Kindle
Impact!, by PRS competitor Rodney Maze, is an entry/intermediate level guide to preparing yourself and your equipment to compete in precision rifle type matches. It will also benefit anyone looking to learn about practical-style long range and precision shooting. We recommend you check it out for yourself — there are 20 Pages of free sample content on Amazon. Topics covered include:
— Rifle, optic, and equipment selection
— Setting up your rifle, bags, tripods for PRS/NRL matches
— Understanding ballistics and how to record and use ballistic data
— Techniques for using holdovers for multi-target stages
— Gun skills, rapid fire techniques, clearing malfunctions
— Shooting off of barricades, and specialty stages
— Effects of wind and how to improve your wind calls
— Tips for live fire and dry fire practice
— Preparing yourself and your equipment for a match
— Mental strategies and techniques
Impact! is illustrated with plenty of photographs. Topics are divided logically, and concepts are explained in clear language. Also included is an extensive glossary of terms used in precision shooting and a list of additional resources you can use to further pursue your precision shooting knowledge. This book also includes a handy Appendix with formatted pages for recording data about your rifle, scope, and ammunition. There is also a Wind table for recording your rifle “dope” and wind hold-offs. Lastly, Impact! has a useful table of unit conversions.
2. Practical Shooter’s Guide
Marcus Blanchard, $19.99 Paperback, $9.99 Kindle
Thinking of getting started in the Practical/Tactical shooting game? Looking for ways to be more stable when shooting from unconventional positions? Then you may want to read Marcus Blanchard’s Practical Shooter’s Guide (A How-To Approach for Unconventional Firing Positions and Training). Unlike almost every “how to shoot” book on the market, Blanchard’s work focuses on the shooting skills and positions you need to succeed in PRS matches and similar tactical competitions. Blanchard provides clear advice on shooting from barricades, from roof-tops, from steep angles. Blanchard says you need to train for these types of challenges: “I believe the largest factor in the improvement of the average shooter isn’t necessarily the gear; it’s the way the shooter approaches obstacles and how they properly train for them.”
3. Long Range Shooting Handbook
Ryan Cleckner, $20.04 Paperback, $9.99 Kindle
Ryan Cleckner’s Long Range Shooting Handbook is the best-selling modern book on practical rifle skills. A former U.S. Army sniper instructor, Cleckner is knowledgeable, and his text is well-organized and chock full of good information. You can view Sample Chapters on Amazon.com.
Ryan Cleckner’s highly-regarded Long Range Shooting Handbook is designed as an intro to important fundamental concepts such as MOA vs. Mils, External Ballistics, and Environmental Effects. Included are personal tips and advice based on Cleckner’s years of experience as a sniper instructor and special operations sniper.
The Long Range Shooting Handbook is divided into three main categories: What It Is/How It Works, Fundamentals, and How to Use It. “What It Is/How It Works” covers equipment, terminology, and basic principles. “Fundamentals” covers the theory of long range shooting. “How to Use It” gives practical advice on implementing what you’ve learned, so you can progress as a skilled, long range shooter. This book will benefit any long-range shooter, not just PRS/NRL competitors.
4. Official U.S. Army Sniper Training and Operations Manual
From U.S. Army Sources, $17.59 paperback.
This U.S. Army Sniper Training Manual is a very comprehensive resource, with over 450 pages of information in a large 8.5″x11″ format. NOTE: Unlike other editions on Amazon, this is NOT the basic, outdated FM 23-10. This is the completely-overhauled 450+ page edition (FM 3-22.10). Heavily illustrated, this is a very useful resource for tactical/practical precision shooter. Employed as the “textbook” for the U.S. Army Sniper School at Fort Benning, GA, this big manual explains ranging methods, rifle handling, optics selection and operation, and rifle maintenance.
There is also extensive discussion of ballistics, wind reading, and weather effects. Practical competitors will appreciate the discussions of moving targets, range estimation, and range safety procedures. One reviewer explains: “This book contains the distilled wisdom of the Sniper School’s instructors and expert marksmen, giving you over 450 pages of unique insight into the long range combat shooter’s art.”
F-Class is a known-distance event, with targets of known dimensions that have markings (rings) of known sizes. Any ‘holding off’ can be done using the target face itself. Most ‘benefits’ of Front (first) focal plain (FFP) optics are null and void here — they work great on two-way ranges where ‘minute of man’ is the defining criteria — but how many FFP scopes do you know of in the 30-40X magnification range? Very, very few, because what people who buy high-magnification scopes want is something that allows them to hold finer on the target, and see more detail of the target, not something where the reticle covers the same amount of real estate and appears ‘coarser’ in view against the target, while getting almost too fine to see at lower powers.
Others use a 
In 2010, the staff of 
F-TR Team USA member Matt Schwartzkopf is a double amputee below the knee, having had his lower legs removed due to a birth defect. That hasn’t held him back. Matt is an inspiration to us all. He told us: “This condition has not held me back from anything.” Jokingly, he added, “I may not have ‘a leg to stand on’, but that doesn’t mean I can’t still shoot 10s and Xs at 1000.” Matt is living proof that competitive shooting is a sport for all individuals — young and old, able-bodied and physically challenged.
George Gardner was kind enough to send us 50 pieces of Pre-Production Alpha 6GT brass for preliminary testing. Like the cases I formed from 6.5×47 Lapua brass, the Alpha 6GT brass will use a small rifle primer. Price from 
Shoot 101 Quiz
First, Ron explains that airport thieves can spot bags containing firearms no matter how they are packaged: “Don’t think you’re safe if your guns are placed in cases designed for golf clubs or trade show items. Baggage is X-Rayed now and cases are tagged with a special bar code if they contain firearms. It doesn’t take long for bad guys to figure out the bar coding for firearms.”
