Ask 10 shooters about barrel cleaning and you’ll get 10 different opinions. This reflects that fact that different fouling problems demand different solutions. For example, solvents that work well for copper may not be the best for hard carbon (and vice-versa). To come up with the right solution, first you must understand the nature of the fouling in your barrel.
John Krieger Interview with AccurateShooter at SHOT Show:
The debate about the proper care of a match barrel is a hot one, spiked with folklore and old wives’ tales, Lohman said. He and his staff set out to set the record straight: “We tried to interject some science into the discussion of cleaning a match barrel,” he explained. In his article, Lohman writes:
Why worry about a little barrel fouling when the throat is subjected to a brutal 5,600° F volcano at 55,000 PSI? To investigate these and other questions about taking care of a match barrel, we spoke with a dozen experts and share their knowledge in this first of a series of articles.
After listening to folks who shoot, build barrels or manufacture cleaning solvents for a living, we concluded that even the experts each have their own unique recommendations on how to care for a match barrel. But they all agree on one thing — the gun will tell you what it likes best. Because the life expectancy of a match barrel is about 1,500 to 2,500 rounds, the objectives of cleaning one should include: preserve accuracy, slow the erosion, and remove fouling — all without damaging the gun. This article doesn’t claim that one cleaning method is better than the next. Rather, we set out to interject a little science into the discussion and to share some lessons learned from experts in the field.
For more Shooting Sports USA articles, visit www.ssusa.org.
The 6mm GT (aka 6GT) cartridge was conceived as a “bigger Dasher” for PRS and 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 competition. Today’s story is a bit different — this is about an experiment — running a 6mm GT in an F-TR type rifle. Understand that, under current NRA rules, you may only shoot .223 Rem (5.56×45) or .308 Win (7.62×51), in official, sanctioned F-TR competition, but the 6GT is fine for F-Open. Mike McCasland wanted to see the potential of the cartridge for long-range target shooting, so he put a 6mm GT-chambered Bartlein barrel on a nice custom rifle with McMillan XIT stock and Kelbly F-Class Panda action. The results were impressive.
6mm GT — New Cartridge with Multi-Discipline Potential
Story by Mike McCasland, Texas Precision
The 6mm GT began garnering attention within PRS circles in early 2019. It promised to shoot 105-110gr 6mm bullets at 2950-3000 FPS, yet not suffer from mag-feed issues sometimes found with 6mmBR variants such as the 6 Dasher, 6BRX, and 6BRA. Moreover, since it burned less powder, the 6mm GT promised increased barrel life compared to the 6mm Creedmoor or 6XC. The 6mm GT case size should still work with the accurate powders in the Varget burn-range. I found the 6GT also worked great with H4350.
As someone who aspired to building a repeater and jumping into the PRS game, and had a spare F-TR rifle sitting around, I thought it would be fun to build up a 6mm GT to see if there was any merit to the hype. My smith, Wes Ripley of RIP Precision in Texas, builds a lot of PRS rigs, and already had the reamer on hand (a 0.120″ freebore variant).
Whidden Gunworks had some 6mm GT FL bushing die kits in stock, so I figured why not see what all the fuss was about? At the very least I could play around with the 6mm GT in F-Open Class at local club matches to see how it compared to the 6BRA, 6 Dasher, and other popular 6mm cartridges.
Click image to see video comparison of multiple 6mm cartridges by Quarter Minute Magnums.
How the Project Got Started with Backup F-TR Rig
My 6mm GT build really started as a project spawned purely from COVID-19 Isolation boredom. This rifle primarily serves as a backup F-TR gun, and it had been relegated to performing some load development on .308 barrels, so I could spin new ones on my main match rifle. The only problem was, I had run out of .308 barrels that needed load development. So, I basically had an ideal test platform just collecting dust in the safe. All I needed was a 6mm GT-chambered barrel, since (like the 6mmBR) the 6mm GT works in a short action with a .308 Win-sized bolt-face.
6mm GT Rifle Specifications:
Action: Kelbly Panda F-Class SA RB/RP
Stock: McMillan XIT with RAD 2A
Barrel: 30″ 5R Bartlein 1:7.5″-Twist, HV Contour
Scope: Vortex Golden Eagle 15-60x52mm
Trigger: Jewell Benchrest, about 2 ounces
Bipod: Phoenix Precision
Mike McCasland reports: “I have used both Hornady and Alpha brass in this rifle and haven’t noticed much difference between the two. I will say that my batch of Alpha brass was slightly softer than Alpha brass I’ve used in other calibers; you could feel a difference when neck turning cases. I’m unsure if that’s a batch issue, or something specific to their 6mm GT brass as a whole. As far as performance, there was little discernable difference. Oddly enough, the Hornady brass seemed to have slightly less case capacity than the Alpha; with most other cartridges it’s the other way around.”
In this video, George Gardner of GA Precision talks about the 6mm GT cartridge which he helped develop.
POWDERS — The 6mm GT was designed with Hodgdon Varget in mind, and that popular powder works exceedingly well in this platform. That said, the 6mm GT can work with a wide variety of powders, some yielding better performance than Varget.
I’ve tried a multitude of powders during my initial 6mm GT load development: Varget, Shooters World Precision, RL16, VV N140, H4350, and RL-15 to name a few. In my barrel, Hodgdon H4350 seems to deliver the best velocity/accuracy combination. SD and ES also seemed to be the lowest with H4350.
Load Development for the 6mm GT — Many Powders Tested
BULLETS — The most common 0.120″ freebore chamber allows for the majority of high-BC 6mm projectiles found in both F-Class and PRS. I had good luck with the pointed 107gr Sierra Match Kings (SMK), as well as the 110gr Hornady A-Tips in my rifle. For those looking to run the heavier 112-115 grain 6mm offerings, I believe GAP designed a 0.160″ freebore reamer that gets those bullets out of the neck/shoulder junction. Shown below is the 0.120″ freebore JGS reamer print:
SUMMARY — Good Cartridge with Much Potential
Generally speaking, I think the 6mm GT is a good little round. Some may not subscribe to this theory, but I believe some cartridges are inherently easier to tune than others. I’m not sure the 6mm GT is as easy-to-tune as a 6mmBR, 6 Dasher, or 6 BRA, but I don’t think it lags that far behind.
With relatively little trouble, I was able to find loads with both Varget and H4350 that would consistently shoot very well — 0.2 to 0.3 MOA. Moreover, I found the 6GT cartridge lives up to the velocity claims made by G.A. Precision. I was easily able to push the 110gr A-Tips to 2950 FPS, and the 107gr SMKs to low 3000 FPS range without any pressure signs, or unnecessary wear and tear on the brass.
As a fun test, I ran my 6mm GT rifle in a local 1000-yard F-Class match with the 110gr A-Tips, just to see just how well they would perform. Although wind conditions of the day and some E-Target issues prevented my 6mm GT rig from getting the better of the larger 7mm and .30-Cal rifles, the 6mm GT proved itself an accurate little round at distance. Here is a 1000-yard ShotMarker target:
After putting several hundred rounds through my 6mm GT rifle, I anticipate building another 6GT on a repeater action to give PRS a try. I think if you are looking for a dual-purpose rifle that can run tactical matches (with 100% feeding reliability), and can also be used for mid-range, F-Open Class competition, the 6mm GT would be a very good option.
About the author, Mike McCasland:
Mike McCasland is an avid shooter who competes regularly in F-Class matches. Based in Texas, Mike is the creator of the Texas Precision YouTube Channel. There you’ll find many videos covering reloading, gun projects, and marksmanship. Mike has done some notable product reviews including a comparison test of Micrometer Competition Seating Dies. To access Mike’s YouTube Channel, CLICK HERE.
Here’s a handy training option for F-Class shooters. Forum member SleepyGator is an F-Class competitor, but there are no long-distance ranges close to his home. Accordingly, he wanted some “reduced-distance” targets he could use at 300 yards for practice. There IS an official reduced-distanced standard for 300-yard F-Class matches. This utilizes the NRA No. MR-63FC – F-Class Target Center which is pasted over the MR-63 target. It provides a 1.42″ X-Ring, 2.85″ 10-Ring, and 5.85″ Nine-Ring. We offer some free targets you can print out for use at 300 yards. The dimensions of F-Class targets are found in the NRA High Power Rules, Sec. 22, part 4, page 70-71 — see sample below.
To duplicate the 300-yard target, SleepyGator made a printable version of the MR-63FC Target Center, along with a pair of training targets with two bulls and five bulls. The two-bull and five-bull targets mirror the scoring rings on the MR-63FC, but they display only the innermost three rings and two rings respectively. All three targets are Adobe PDF files that can be easily printed.
NOTE: You may need to adjust the scale (sizing) on your printer to get the dimensions exactly correct. As noted above, when printed, the 10-Ring on all three targets should measure 2.85″. This should provide some handy practice targets you can use between matches. Thanks to SleepyGator for providing these targets. You can download all three as a .Zip archive. After downloading the .Zip file, just click on the .Zip archive to extract the individual targets.
If you’re looking for a handsome new handgun, consider Ruger’s engraved 1911-type pistols, marketed as the SR1911 “Street Edition” series. This series of five engraved models of the SR1911 pistol celebrates Ruger’s manufacturing heritage.
These Commander-style pistols are chambered for the .45 Auto (.45 ACP) and feature a 4.25″ stainless steel barrel. The stainless steel slide is engraved in fine detail and also includes the Ruger logo. These pistols feature an aluminum frame and titanium firing pin. Drift adjustable, Novak 3-Dot sights allow for quick and easy target acquisition.
The first of the “Street Edition” series (shown above) was introduced in October 2024 to commerorate Ruger’s 75th anniversary. The next four “Street Edition” SR1911s have common design elements, but each with a unique grip color. Production was limited to 500 of each model.
CLICK HERE for more information on the SR1911 pistols on the official Ruger website. For more photos check out a detailed SR1911 feature on the NRAwomen.com website. Price varies for each release but the SR1911 “Street Edition” is listed for $1359.99 at MidwayUSA with blue grip or green grip.
Ruger SR1911 “Street Edition” series features:
— Traditional 1911 design with finely engraved stainless steel slide.
— Skeletonized hammer and titanium firing pin for faster lock time.
— Lightweight aluminum frame and polished titanium feed ramp.
— Oversized ejection port and extended magazine release.
— Aluminum, skeletonized trigger with crisp trigger pull.
— Replaceable grip panels and checkered backstrap.
— Novak 3-Dot Drift Adjustable Sights.
— Loaded Chamber Indicator.
Today’s Saturday showcase features a variety of notable products. We start with the excellent new-generation Micron seating dies. These precision dies deliver very low run-out and very consistent base-to-ogive numbers. Next we highlight the superb Bix’n Andy triggers, both single-stage and 2-stage models. Then Ultimate Reloader reviews the Longshot Hawk Spotting scope camera. This is followed by a detailed video on the state-of-the-art, computer-controlled AMP Mark II DB annealer, an amazing product that can enhance accuracy while dramatically extending useful brass life. For ELR shooters and 50 BMG fans, we include a review of Forster’s Co-Ax XL press. And finally you’ll find a video showing Caldwell’s handy and affordable “Flash Bang” hit detector.
New Micron Seating Dies from Bullet Central
This F-Class John video covers the impressive Micron Precision Series eating dies, both the threaded version and the Arbor Press model. These are beautifully made with very precise seating depth adjustments. John starts by showing the full operation of the Micron Arbor Press Die. Then, at the 12:05 time-mark, John shows the Micron threaded die used in the impressive new Short Action Customs Nexus Press. John explains how to back off the dies to work towards your desired seating depth in stages. Use code MICRON15 at Bullet Central to save 15% on your Micron purchase.
Bix’n Andy Triggers — Single-Stage and 2-Stage
Bix’N Andy triggers are now widely used by top long-range, F-Class, and Palma competitors. These triggers are precise, easy to adjust and available for a wide range of actions. The availability of Bix’N Andy triggers is more important than ever before because Jewell triggers has halted production and it is now difficult to get spare parts for Jewell triggers. In this video, F-Class John shows the features of both single-stage Comp and 2-stage Comp triggers, with different trigger blades. At the 16-minute mark, John shows the triggers in use at the range on both benchrest and NRL22-style rimfire rifles. NOTE: For a limited time save $30 off order of $300 or more at BulletCentral.com with code FCJ30.
Longshot Hawk Spotting Scope Camera
The LongShot Hawk Spotting Scope Camera is a great accessory. Attached to the eyepiece of your spotting scope, it will send the “view” to a tablet or smartphone placed next to your rifle. With this system you can see the shot impact in normal firing position your cheek resting against the rifle. That is impractical with the cheaper phonescope systems attached to a spotting scopes. NOTE: Any device that you’ll use to connect to the HAWK (phone or tablet) will need to be Wi-Fi capable. The HAWK has built-in Wi-Fi and broadcasts an SSID to connect with your phone/tablet. It doesn’t need an internet connection to work — but it uses the wireless connection for streaming the video signal.
Annealing Made Perfect AMP Mark II DB
This detailed 9.7 minute review outlines the features of the latest AMP electronic annealing machine, the AMP Mark II DB. This uses a computer control to deliver precise annealing times and temperatures with a profile for your specific lot and brand of brass. One user praised this new AMP machine: “The touch screen is much more intuitive than the old one.” Another stated: “If you want to anneal the best way possible this is it. Does a torch work? Sure it does. The AMP does it far better and far more consistently.” A buyer confirmed this sophisticated new AMP is fast and efficient: “Just got one, a few days ago and it’s so easy to use. Without even trying, I easily anneal eight rounds per minute”.
Forster Co-Ax XL Press — Great Option for Very Large Cartridges
If you load very long cartridges, such as the .375 CheyTac, .416 Barrett, or 50 BMG, you will need a specialized press with more space inside the frame and enhanced vertical die travel. The relatively new Forster Co-Ax XL press, introduced at the 2023 SHOT Show, fills the bill. In this Ultimate Reloader video, Gavin Gear shows how to set up the XL press. Then he shows how to adapt the press to different die sizes. He finishes by sizing a 50 BMG case. Gavin notes that this press has beefy construction and ball bearings in the linkage plates. Like what you see? You can purchase this press direct from Forster for $1295.00.
Caldwell Flash Bang Device Shows Hits
If you are shooting steel or reactive targets at long range, sometimes it is difficult to see the hit, particularly if you are shooting lighter-weight bullets or if the target hasn’t recently been painted. Caldwell has a solution — the battery-powered Flash-Bang. A bright-green strip light flashes on impact. The Flash-Bang unit attaches with adhesive to the rear of the target, extending to the left or right side. CLICK HERE for another Caldwell Flash Bang field test from the HarleyWood YouTube Channel.
TEN Shots in 0.303″ (0.289 MOA) at 100 Yards
Look at that target showing TEN shots at 100 yards, with eight (8) shots in the main cluster at the top. The ten-shot group measures .303″ (0.289 MOA), as calculated with OnTarget Software. Not bad for a handgun — a very nice bolt-action XP-100 pistol! What do you think, can your best-shooting rifle match the 10-shot accuracy of this XP-100 pistol?
Report by Boyd Allen
This story goes back a few seasons… this remarkable XP-100 pistol belongs to Dan Lutke, a Bay Area benchrest shooter who publishes the results for the Visalia matches to the competitors and the NBRSA. He has been an enthusiastic competitor for an number of years, at various ranges, notably Visalia and Sacramento. The action is a Remington XP-100, to which a Kelbly 2 oz. trigger has been fitted. On top is an old Japanese-made Tasco 36X scope (these were actually pretty darn good). The Hart barrel (a cast-off from Dan’s Unlimited rail gun) was shortened and re-chambered for the 6x45mm, a wildcat made by necking-up the .223 Remington parent case. The custom stock/chassis was CNC-machined by Joe Updike from 6061 Billet Aluminum to fit the XP-100 action and mount a target-style AR grip with bottom hand rest. The gun was bedded and assembled by Mel Iwatsubu. In his XP-100 pistol, Dan shoots 65gr custom boat-tails with Benchmark powder.
This diagram shows the most common 6x45mm wildcat, which is a necked-up version of the .223 Remington parent cartridge. NOTE: The dimensions for Dan Lutke’s benchrest version of this cartridge may be slightly different.
ACAD drawing by Peter Gnanapragasam CC by SA 3.0, via Wikimedia Commons. Title Added.
Story tip from Boyd Allen. We welcome reader submissions.
This month the Civilian Marksmanship Program (CMP) will offer multiple events at the Camp Perry Facility in Ohio, including a Veterans’ Day Program (free for Veterans) at the Gary Anderson CMP Competition Center. The Competition Center, on the grounds of the Camp Perry National Guard Training Site in Port Clinton, Ohio, is open to the public. The facility houses a retail store, classroom, common area, Laser Shot simulators, and an 80-point indoor electronic target range for air rifle and air pistol.
Later in November there will be a Turkey Shoot Air Rifle Benchrest Match on November 18th. This will be open to the general public and the top shooters can receive a turkey as a prize.
Upcoming events include:
November 11, 12-8 p.m. – Veterans Day – Veterans receive free admission for the air range and Laser Shot simulators.
November 18, 6 p.m. – Turkey Shoot Bench Match – Participants fire air rifles from a support block, equipment provided! Prizes will be awarded to the top three places.
December 16, 5-8 p.m. – Holiday Party – Festive music, refreshments and more!
Bring your own equipment or you can shoot air rifles provided by the facility. Trained staff members will supervise activities and provide safe oversight during training and matches. All ages are welcome. However, juniors must be at least 10 years old to handle air rifles or air pistols.
The NRA has produced a good video on general principles of gun safety. New shooters should definitely watch this video, which provides many important reminders for long-time gun owners as well. This video and other safety principles are featured in a Shooting Sports USA article.
While at the range, shooters should practice Three Basic Rules:
1) Always keep the gun pointed in a safe direction.
2) Always keep your finger OFF the trigger until ready to shoot.
3) Always keep the gun UNLOADED until ready to use.
In addition, whenever you are shooting, indoors or outdoors, know what is behind your target and never shoot if there is not a safe backstop. With a centerfire rifle at an outdoor range, just a few degrees of elevation can cause a shot to impact more than a mile away.
Store Guns Safely When Not in Use
After your range sessions or hunts, is vital to store all guns safely. We recommend storing all firearms (pistols, rifles, shotguns) in a sturdy gun safe with thick steel walls. Use a GoldenRod or other device to control humidity inside the safe. We also like to use Bore-Stores or other treated gun sacks to help protect against corrosion.
AccurateShooter’s Target Page provides over 50 FREE downloadable targets. You’ll find all types of targets — sight-in targets, varmint targets, rimfire targets, bullseye targets, tactical targets, load development targets and more. CLICK HERE for all our free targets, including our popular LOAD DEV target.
On this load development target, all your load data fits neatly in the boxes under each target. The diamonds have 1/2″ sides and you can align your cross-hairs on the horizontal and vertical lines. When we test, we crank in a little elevation, setting the point-of-impact higher. That way our shots fall in the gray circles, leaving the red diamonds intact for precise aiming.
Storm Tactical Targets — Hundreds of FREE, Printable Targets
If you want an even greater selection of targets, specialized for PRS and NRL shooters, Storm Tactical offers a vast collection of tactical targets, available in three different versions: MOA, MIL Yards, and MIL Meters. These target sets were created with input from Sniper’s Hide. Storm Tactical also created a great rimfire target set. This includes side-by-side target blocks for fun, one-on-one competition. If you shoot NRL22 or just enjoy shooting with a buddy, we highly recommend the rimfire target set.
Overall there are 299 Storm Tactical Targets in four sets.
CLICK links to launch each Storm Tactical target collection. Then you can click the download icon to save to your hard drive. OR, you can scroll up and down to select the target(s) you like which you can tell your printer to print. We do recommend downloading the complete archives. File sizes are listed.
Here’s a Tikka T3 in Third Eye Tactical cerakoted chassis.
Rimfire Twin Target, for One-on-One Shooter Challenges
You’ll find this fun target on the third page of the Rimfire Target Pack. Just download the PDF file and instruct your printer to deliver page three. Or print out all six (6) rimfire targets if you like.
For pure shooting fun it’s hard to beat a semi-auto .22 LR. While Ruger’s 10/22 is the most popular semi-auto .22 LR rifle, manufacturers are now offering AR-style self-loading rimfire rifles. These rimfire versions of the AR-15 are excellent training tools for 3-Gun and service rifle shooters. You can practice with less expensive rimfire ammo, and save wear and tear on your centerfire ARs. Rimfire AR clones also work great for Rimfire Tactical Matches.
AR-Style .22 LR Rimfire Rifles
Smith & Wesson M&P 15-22
Smith & Wesson’s 15-22 is a nice little rifle. The M&P 15-22 is designed as a true .22 LR semi-auto from the ground up, with ergonomics (and most controls) identical to a centerfire M&P 15 rifle. These rimfire AR clones are very affordable. For example, BudsGunShop.com has M&P 15-22 models starting at just $394.49. And these 15-22s qualify for a $50.00 Smith & Wesson Holiday Season Rebate through 12/31/2025. That lowers your net cost to just $344.49! (other 15-22 models can be $50-$100 more).
NRA reviewer Colon Noir tested the M&P 15-22 and was impressed: “This gun is unbelievably fun to shoot. There is virtually no recoil. The non-existent recoil makes shooting fast a breeze. Yeah, the magazine is a little quirky… but in the grand scheme of things, this gun feels like a full-out AR-15. The M&P 15-22 makes for a great training companion. I would place this gun in the ‘Fun Box’ — it’s reliable enough that you can have a fun time shooting. I’m picking one up, because it’s guns like these that make you truly realize how fun shooting is.”
Here’s a Video Review of the M&P 15-22 by the NRA’s Colin Noir
Hechler & Koch (Walther) HK 416
H&K offers the HK 416, a dedicated .22 LR rimfire rifle. Engineered and built in Germany by Carl Walther, the HK 416 D145RS features a match-grade precision barrel, metal upper and lower receivers, retractable stock, and machined rail interface system with on-rail iron sights.
These Walther-made HK rimfire rifles (which employ a blow-back action) are accurate and reliable. They are also reasonably priced. Many vendors offer the HK 416 for under $540.00 and it’s currently on sale for just $449.99 at CDNN Sports. One purchaser writes: “Great .22. I have had this gun a couple of months and have put about 500 rounds of 5 different brands of ammo through it. Not one FTE. I have shot other brands that can’t get through one 30-round mag without a failure. [The 416] is a little pricey compared to the competition but you get what you pay for.”
As someone who aspired to building a repeater and jumping into the PRS game, and had a spare F-TR rifle sitting around, I thought it would be fun to build up a 6mm GT to see if there was any merit to the hype. My smith, Wes Ripley of 
BRASS — Editor’s Report: Lapua now offers excellent 
SUMMARY — Good Cartridge with Much Potential
If you want an even greater selection of targets, specialized for PRS and NRL shooters, 
