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September 7th, 2023

Lyman Precision Powder Funnel Set with Caliber-Specific Inserts

Lyman brass smith precision funnel set inserts caliber reloading powder

Lyman makes a very handy product for reloaders that can save space on your reloading bench and give you more efficient powder flow into your cases. With common plastic “one size fits all” type powder funnels, the powder sometimes sticks to the sides of the funnel. Or, the fit to the case mouth is less than ideal so some of the kernels end up on the bench.

Precision powder funnels solve those problems. But what if you shoot a wide range of calibers with big and small case mouths? Lyman has the answer: the Brass-Smith Precision Funnel set, now $28.79 at Midsouth. This handy product combines a static-free cast aluminum funnel with a set of SIX (6) CNC-machined inserts that fit cartridges from .22 caliber all the way up to .338 caliber. It is easy to swap the inserts to match the particular cartridge you are loading. In this Ultimate Reloader video, our friend Gavin Gear shows how to use the Lyman Precision Pro Powder Funnel Set with multiple neck-diameter inserts:

Product Description: “The Brass-Smith Precision Funnel set is made to be completely static-free, no more powder clinging to surfaces which can happen with lightweight plastic Funnel. This is no ‘one size fits all’ funnel — the Brass Smith Precision Funnel set uses precision-machined, caliber-specific inserts to properly fit the case neck. CNC-turned aluminum inserts to fit specific cartridge families for calibers 22 to 338. Inserts are laser-marked for caliber identification. The inserts can be quickly and easily installed by simply pushing them into place and then pulling them out when changing calibers. The Funnel comes with inserts for .22, .243/6mm, .25/6.5mm, .270/7mm, .30 and .338 caliber rifle cartridges. A padded storage case neatly stores the funnel and inserts when not in use.”

Lyman brass smith precision funnel set inserts caliber reloading powder
Photo shows Precision Funnel Set with foam-padded box and stepped Lyman Bleacher Loading Block.

Forum Member Likes the Lyman Precision Powder Funnel Set
One of our Accurate Shooter Forum members, Garandman, purchased the Lyman Precision Funnel System. He has used it now for multiple cartridge types and is very pleased with the results. Here is his report:

“I wanted to share my good experience with the Lyman powder funnel. First off, with the funnels being aluminum / pot metal, no static charge forms and the powder kernels go right down the funnel into the case with no hang-up.

Also the funnel comes with interchangeable case neck dimension inserts so you get no powder loss outside the case neck. And the funnel is also is less likely to stick to the case neck and pull it out of your loading block. That could spill powder all over the place.”

Overall, the Lyman Precison Funnel Set with case neck inserts has done a great job for Garandman and he suggests you may want to add this tool to your reloading tool collection. Below is a Lyman Precision Funnel Set review from Johnny’s Reloading Bench. This video review has nice close-ups of the six precision inserts from .22 to .338 calibers.

Permalink Bullets, Brass, Ammo, Gear Review, Reloading No Comments »
September 5th, 2023

Vertical Dispersion Test — Six Primer Types Tested at 500 Yards

primer 500 yard testing node vertical H4895 BRA

Do primer types make a significant difference in accuracy or vertical dispersion at long range? The answer is “maybe”. Here’s one anecdotal study that tracked vertical variance among six different primer types. The tester is a good shooter with a very accurate rifle — four of the six 4-shot groups were under 2″ at 500 yards. This test doesn’t settle the question, but does suggest that it may be worth trying a few different primer types with your match ammo.

Here is a very interesting test for the 6 BRA (6mmBR Ackley) cartridge. Forum member James Phillips, a talented long-range benchrest shooter, tested SIX different primer types from three different manufacturers. To help determine vertical dispersion, James set his target out at 500 yards. He then proceeded to shoot 4-shot groups, in order, with each primer type. Velocities were recorded with a chrono. The photo above shows the results. James says: “I’ll retest the best two for accuracy and consistency with 10 shots each”. CLICK HERE for full-screen target photo.

Wheeler 6BR 6mmBR Ackley Improved James Phillips

As you can see, ALL the groups are pretty impressive. The smallest groups, 1.253″, was shot with CCI 400 primers. Next best (and very close) was CCI BR4, at 1.275″ for four shots. The “flat line” winner was the Remington 7.5, at upper left. There was almost no vertical. If you are intrigued by this interesting primer test, you can join the discussion in this Primer Test FORUM THREAD.

Primer Brand Group Size Velocity Extreme Spread Std Deviation
Remington 7.5 1.985″ 4 shot 2955 FPS 8 FPS 4.0 FPS
Federal 205M 2.200″ 4 shot 2951 FPS 11 FPS 4.8 FPS
Sellier Bellot SR 1.673″ 4 shot 2950 FPS 14 FPS 5.9 FPS
CCI 450M 2.341″ 4 shot 2947 FPS 14 FPS 6.6 FPS
CCI 400 1.253″ 4 shot 2950 FPS 3 FPS 1.3 FPS
CCI BR4 1.275″ 4 shot 2949 FPS 15 FPS 6.9 FPS

CARTRIDGE: 6mmBR Ackley, aka 6 BRA. Parent case is 6mmBR Norma. The 6 BRA is fire-formed to create a 40-degree shoulder and less body taper. Capacity is increased, but the neck is longer than a 6mm Dasher. The capacity is enough to get to the 2950+ FPS accuracy node. Some shooters say the 6 BRA is more forgiving than the 6mm Dasher. The 6 BRA is certainly easier to fire-form.

LOAD SPEC: 6 BRA (40° 6 BR Improved), 31.1 grains Hodgdon H4895, Bart’s 105gr “Hammer” bullets.

TEST REPORT — Conditions, Shooting Method, Loading Method

Tester James Phillips posted this report in our Shooters’ Forum:
Conditions: The testing was done in the morning over flags. The flags never moved or even twitched. I had as perfect conditions as I could have asked for. It was overcast so no mirage and no wind. There were no other shooters, just me.

Test Procedure: Each shot was precisely shot at my pace and centered the best possible using my Nightforce 15-55X scope. I did not use the round-robin method. Each four-shot group with the same was shot at one time. Then I moved onto the next primer. Everything felt right for each and every shot fired today. Of course I could repeat the test tomorrow and it could be exact opposite of today’s test. We can chase this forever. But [soon] I’m going to test the BR4 and 400 primer… for best accuracy and consistency for 10 shots each.

How Rounds Were Loaded: Each load was weighed to one (1) kernel of powder. So I know that’s as good as I can weigh them. Each bullet seating force was within 1# on my 21st Century hydraulic arbor press.

Previous Initial Load Testing: All groups were shot with 31.1 grains of H4895. During initial load testing I settled in on the Sellier & Bellot primer to finalize everything as it showed more promise over the CCI 450 Magnum I also tried. I was actually surprised to have seen the higher ES and SD from that primer today along with the vertical shown. [Editor: Look carefully — one shot from the CCI 450 is right in the center black diamond, stretching the vertical. By contrast the Rem 7.5 had almost no vertical.]

primer 500 yard testing node vertical H4895 BRA

Velocity and NODE Considerations: I was about 5-6 FPS above what appeared to been my optimum velocity of 2943-2945 FPS, so I’ll test 5 shots of 31.0 and 5 of 31.1 and see what happens from there. I can only assume my velocities where higher due to the higher humidity and of course temps were 5 degrees warmer this morning as well. It wasn’t far off but I noticed it.

Permalink - Articles, Bullets, Brass, Ammo, Reloading, Tech Tip 2 Comments »
September 2nd, 2023

Tiered “Bleacher Blocks” Work Well for Many Reloading Tasks

Lyman Bleacher Block stepped cartridge holder

Here’s an inexpensive product that can make your case prep and loading tasks easier. We use and recommend the cleverly-designed Lyman Bleacher Blocks. These multi-level (stepped) cartridge holders save space on your bench AND make it easier to select a particular case/cartridge from a full block. Each row is a different height for convenience. With Bleacher Blocks it’s also easier to check for powder levels, or place bullets before the seating process.

Lyman’s Bleacher Block cartridge holders have many advantages over conventional, single-level blocks. Use the different levels for sorting brass. Or, migrate the brass from top to bottom as you proceed through case prep stages. If you are assembling loads with different bullets for load testing, you could arrange the loaded rounds on different levels for easy recognition. For example put V-Max loaded rounds on the top tier, and Berger Hybrid loaded rounds on the bottom tier. Or, if you are experimenting with neck tension, you can use different rows for cases processed with different bushings.

Made of durable orange polymer, Lyman Bleacher Blocks are now molded in five sizes — small pistol, large pistol, and three rifle sizes. The smallest rifle block (with 0.388″-diam holes) fits .223 Rem-size case heads. The middle size rifle block (with 0.485″-diam holes) fits .308 Win-size case heads. That works for 6mmBR/Dasher sized cases perfectly. The biggest rifle Bleacher Block has 0.565″-diameter recesses for magnum-size cases. All cartridge block sizes hold fifty (50) rounds. Purchase these for just $6.29 per block at Midsouth or get them for $7.99 per block at Brownells.

Lyman Bleacher Block stepped cartridge holder

Here’s what Lyman says about its innovative cartridge block design: “Our [stepped] loading blocks allow for easier handling of cases in and out of the loading block. Our stepped design allows you to easily grip a single case without jamming your fingers down into a group of cases like in traditional loading blocks, and allows for a smaller ‘footprint’ on your bench.”

Lyman Bleacher Blocks are among the Reloading Tools reviewed in this helpful video:

Permalink - Videos, Bullets, Brass, Ammo, Reloading No Comments »
August 28th, 2023

Bargain Finder 414: AccurateShooter’s Deals of the Week

AccurateShooter Deals of the Week Weekly Bargain Finder Sale Discount Savings

At the request of our readers, we provide select “Deals of the Week”. Every Sunday afternoon or Monday morning we offer our Best Bargain selections. Here are some of the best deals on firearms, hardware, reloading components, optics, and shooting accessories. Be aware that sale prices are subject to change, and once clearance inventory is sold, it’s gone for good. You snooze you lose.

NOTE: All listed products are for sale to persons 18 years of age or older. No products are intended for use by minors.

1. Amazon — Frankford Arsenal Intellidropper, $149.90

frankford arsenal sale
Save 22% or more on excellent powder scale/dispenser

A good electronic powder scale/dispenser lets you more precisely with greater charge-weight consistency. The Frankford Arsenal Intellidropper delivers 0.10 (one-tenth) of a grain accuracy. This modern, easy-to-use machine also connects via Bluetooth to a very handy App on your phone that stores your loads for various cartridge and bullet types. Priced at just $149.90 on Amazon, this is an awesome deal. This same Intellidropper Platinum sells for $229.99 elsewhere — $80 more than the Amazon price.

2. Sportsman’s Warehouse — Optics Clearance Sale

sportsmans warehouse sale
Big savings on optics from Nikon, Leupold, Crimson Trace, Burris and more

Once a year Sportsman’s Warehouse has a giant End-of-Summer Optics Clearance Sale. With this major sale you’ll find big discounts on a wide range of optics from leading manufacturers including Nikon, Leupold, Crimson Trace, Bushnell, SIG Sauer, Meprolight, Burris, and more. Save on riflescopes, binoculars, spotting scopes, laser rangefinders, and red dot sights.

3. Natchez — Lyman Labor Day Sale, Save up to 22%

lyman reloading Sale
Significant savings on Lyman tools and combo kits

Lyman makes quality products from brass tumblers to case trimmers. Check out the Lyman Sale over at Natchez. You can save on Lyman powder dispensers, case trimmers, Case Prep center, brass tumblers, trigger gauges, and more. In addition, the very complete Lyman Reloading Kit with Turret Press is discounted $72.50. This is a great opportunity to pick up some quality Lyman tools for your reloading room.

4. Natchez — Bushnell Optics Sale

bushnell scope sale
Great fall deals on Bushnell scopes, LRFs, and binocs

Are you looking for a quality yet budget-priced scope for your hunting rifle, or perhaps a set of binoculars for that fall hunt? Check out this Bushnell Clearance Sale at Natchez. You’ll find Bushnell scopes, binoculars, and rangefinders at heavily discounted prices. For example the Bushnell 3-12x40mm Prime Multi-X scope is just $194.99, a $50 savings off the regular $244.99 price.

5. Palmetto State Armory — PSA Dagger 9mm Pistol Kit, $399.99

PSA dagger pistol sale
Excellent pistol plus Sierra ammo and 5 magazines

If you’re in the market for a good 9mm defensive pistol, check out the PSA Dagger Compact 9MM PistolCombo Kit. For under $400 you get the PSA Dagger pistol, five 15-rd PMAG Magazines, AND 100 rounds of Sierra Sports Master 9mm ammunition. This is a great combo for the money. NOTE: This pistol has an optics-ready slide and a threaded barrel for use with muzzle brake or suppressor.

6. Bullet Central — Bix’n Andy TacSport Pro-X Triggers

competition trigger sale
Big savings on excellent trigger for hunting and tactical rifles

Bix’n Andy makes some of the best competition triggers, much respected for their repeatability and reliability. The latest Bix’n Andy trigger is the TacSport PRO-X. This new model brings the feel of a Bix’n Andy Competition trigger to the TacSport family. This rugged trigger boasts an encapsulated housing that protects the stainless steel internals. The Pro-X will work very well for a variety of disciplines — precision (PRS/NRL) shooting, target shooting, and long-range hunting.

7. Amazon — HighWild Target Stand, $29.99

shooting target sale
Use this sturdy metal stand with your wood target frame

At many ranges you need to set up your own rifle targets. A handy system combines a sturdy metal base with a wood frame. For under $30 you can get the Highwild Adjustable Target Stand Base. This adjustable metal stand base allows you to use wood frames of various sizes. This easy-to-transport metal stand adjusts from 8″ to 24″ in width, so it works with a variety of target frame sizes.

8. Amazon — Caldwell Front and Rear Filled Bag Set, $29.24

rifle shooting bag sale
Good, inexpensive set-up for sighting-in hunting rifles

If you need an inexpensive set of bags to zero your hunting rifle this fall, consider the Caldwell DeadShot Front and Rear Bag Combo. The front bag can also be used in PRS/NRL matches for support. NOTE: Both front and rear bags come filled with corn cob media to allow for immediate use. These bags be used on virtually any surface, and are stable on wood, or concrete benches or rotating shooting stands.

9. Amazon — Outdoor Edge RazorLite Knife (6 Blades), $29.95

hunting knife sale
Nice knife (three color options) with six replaceable blades

For hunters, a sharp and sturdy knife is essential. A good, affordable option is the Outdoor Edge 3.5″ RazorLite EDC Knife which comes with six (6) replaceable blades. Each blade is securely seated in a black oxide-coated steel blade holder, allowing fast blade replacement at the push of a button. This is also a good choice for campers and boat owners who need a razor sharp knife with easily-changed blades. NOTE: This knife is offered with three handle colors for the same $29.95 price: Orange (as shown), Blue, and Gray.

10. Midsouth — RCBS Case Tumbler, $134.99 with RCBS Rebate

hunting knife sale
Great price plus $25 further savings with RCBS Rebate

Need a tumbler to clean a large load of brass? Grab one of these RCBS Rotary Tumblers while they are on sale and RCBS offers a $25 Rebate. This unit has a 2-gallon capacity and ships complete with 5 pounds of stainless steel media. User reviews have been very positive. Price-wise, this is a very good deal at $159.99. The very same RCBS Tumbler is currently $199.97 on Amazon. The $25 RCBS Rebate lowers your final net price to just $134.99!

Permalink Handguns, Hot Deals, Optics, Reloading No Comments »
August 27th, 2023

Sunday GunDay: 6GT Cartridge for PRS/NRL Competition

6GT Cartridge Alpha Munitions GA Precision PRS NRL brass 6.5x47 Lapua fire-formed neck-turn project

For today’s Sunday GunDay story, we feature highlights from two in-depth reports on rifles built around the relatively new 6GT cartridge (also known as the “6mm GT”). Developed by George Gardner (G.A. Precision) and Tom Jacobs (Vapor Trail), the 6GT was designed to feed well from magazines, be more efficient than the 6mm Creedmoor, and offer outstanding accuracy. It is just enough bigger than the 6mmBR or 6 Dasher so it feeds better. But it retains many of the qualities of the 6mmBR (high efficiency and outstanding accuracy). Burning significantly less powder than the 6mm Creedmoor, the 6GT is a bit less expensive to shoot, and should, theoretically at least, deliver better barrel life.

“The [6GT] is a more predictable and barrel-friendly cartridge than the 6mm Creedmoor. It can utilize the accurate and forgiving powders of the 6BR, has fantastic accuracy, and due to its shoulder angle and case length, it doesn’t suffer from feeding issues.” — PewPewTactical.com

We should say that the 6 Dasher has been used very successfully in PRS/NRL competition, with some aftermarket magazine accessories. For this reason, if you already shoot a 6 Dasher, moving to a 6GT may not be worth the cost of new dies and new brass. A.J. Deysel, writing for LoadDevelopment.com, writes:

“The longer case of the 6mm GT means it feeds as reliably from a magazine as a 6mm Creedmoor, and offers slightly higher powder capacity and in turn velocities than the 6mmBR variants, whilst still being able to use the same accurate and forgiving propellants.

load development 6GT 6mm GT report cartridges

You will also find many competitive and average Joes shooting 6mmBR and 6mm Dashers with a Primal Rights or some other mag conversion kit, having very few if any mag-feed issues at all, so that pretty much also nullifies the need to move away from those [chamberings] if you already own one of those or the reloading equipment for it.” — LoadDevelopment.com

Part I: The 6GT Cartridge for Precision Rifle Competition

Report by Vu Pham
I was ready to build a 6 Dasher when I saw a lot of buzz… about a new caliber George Gardner (Owner of G.A. 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 Cartridge Alpha Munitions GA Precision PRS NRL brass 6.5x47 Lapua fire-formed neck-turn project
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.

6GT Cartridge PRS NRL brass 6.5x47 Lapua 6GT 6mm Dasher cartridge fire-formed neck-turn project

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

6GT Cartridge Alpha Munitions GA Precision LabRadar PRS NRL brass 6.5x47 Lapua fire-formed neck-turn project

Alpha Munitions Pre-Production 6GT Brass
6gt brass cartridge Alpha Munitions PRS 6mm DasherGeorge 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. Purchased direct from Alpha Munitions, 6GT brass is now $1.30 per case, which is comparable with Lapua 6mm Creedmoor brass, currently $120.99/100 at Grafs.com.

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!

6GT Cartridge 600 yard target PRS NRL brass 6.5x47 Lapua fire-formed neck-turn project

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.

6GT Cartridge 600 yard target PRS NRL brass 6.5x47 Lapua fire-formed neck-turn project

PART II — 6GT Load Development with Multiple Powders

This text is taken from a full report by Mike McCasland on his 6GT (aka “6mm GT”) bolt action rifle. This rig was designed for general use, not just for PRS/NRL matches. In his 6GT rifle, Mike tested multiple powders including Varget, H4350, Reloder 16, Reloder 15, Shooters World Precision, and Vihtavuori N140. For more details, CLICK HERE for full report.

About the 6mm GT Cartridge

mike mccasland 6mmGT 6 GT alpha brass 6BRA PRS F-ClassBRASS — The first thing you’ll find is cartridge brass choices for the 6 GT are rather limited currently. At present, the only commercial options are Hornady and Alpha Munitions. For the die-hard Lapua fans, you can technically make 6mm GT brass from 6.5×47 Lapua, however that process is very labor-intensive.

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.

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.

mike mccasland 6mmGT 6 GT alpha brass 6BRA PRS F-Class

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
mike mccasland 6mmGT 6 GT alpha brass 6BRA PRS F-Class

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:

mike mccasland 6mmGT 6 GT alpha brass 6BRA PRS F-Class

mike mccasland 6mmGT 6 GT alpha brass 6BRA PRS F-ClassSUMMARY — 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:

mike mccasland 6mmGT 6 GT alpha brass 6BRA PRS F-Class

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.

Permalink - Articles, Bullets, Brass, Ammo, Gear Review, Reloading, Tactical No Comments »
August 27th, 2023

Those Were the Days — Hodgdon Powder Prices 45 Years Ago

historic hodgdon powder prices inflation chart table O.K. Weber

Have inflation (and supply chain shortages) affected the price of powder? You bet. Probably WAY more than you could imagine. Forum member “Two Time HM LR” posted this interesting photo (above) showing Hodgdon powder prices from 1978, as sold by O.K. Weber in Oregon.

Eight Pounders under $45.00 in 1978
Now the prices — $20 to $44 — may not get your attention at first. But take note that these numbers are for EIGHT pound containers. Yep eight-pounders were all under $45! For example, H4895 was $44 for 8 pounds back in 1978, 45 years ago. And H335 was $20 for eight pounds — that’s just $2.50 per pound!

These days a single pound of a desirable powder such as H4831 might cost $60+ at some stores IF you can find it at all. On Hodgdon’s web site, H4831 powder is priced at $54.99 per pound in August 2023. Using that current $54.99/lb figure, H4831 is now TEN times higher than it was in 1978, when H4831 cost $44 for 8 pounds, i.e. $5.50 per pound.

Here are some comments from our Forum Members:

“Heck those prices are just about the same as current ones, just a little smaller container now.” — Joe

“I’ve got some H4831 in a can marked ‘WWII Surplus Powder’ with a price tag of $2.75. We’ll never see that again either.” Rick in Oregon

“1978 prices and 2022 income would be nice. Unfortunately that doesn’t work. If you compare prices and income, powder cost about the same. You also have to discount the temporary gouging that we are seeing.” — Tmwinds

“So I used to buy gas for 10 cents per gallon and they’d pump it, check the oil, and clean the windshield.” — Pirate Ammo

One comment suggests that the powder price hike actually tracks general U.S. currency inflation over the last four decades. So perhaps powder price increases are not as bad as they seem, when compared to how all prices have risen since 1978:

“Using H4895 as a comparison basis at $58.50 (list price) in 1978 calculates it to $275 in todays money. Looking at Powder Valley prices it looks like around [$340 in August 2023] for the same item in todays money [a 24% increase in real dollars]. Availability is another issue though and if someone is really needing powder they may well have to pay above suggested retail.” — Drover

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August 24th, 2023

L.E. Wilson Case Gage Depth Micrometer Review

L.E. Wilson case gage gauge shoulder bump depth micrometer measuring tool

L.E. Wilson Case Gage Depth Micrometer Tool
Hands-On Tool Review by F-Class John
Are you looking for a better way to measure shoulder bump when sizing brass? When it comes to measuring your shoulder bump there has traditionally been just one way to do it and that’s with a set of calipers and some type of tool attached to a calipers jaw which contacts the case shoulder. While this method has worked well for decades there’s always been some inherent lack of consistency and repeatability. While a minor issue, the inability to get the exact number in completely dependent on the user’s pressure applied and the angle at which the jaws push on the brass.

Enter the L.E. Wilson Case Gage Depth Micrometer with its simple but effective use of Wilson case gauges to ensure a perfect measure of shoulder bump every time. The unit comes with the micrometer top as well as a check gauge which allows you to easily calibrate the micrometer whenever needed. On top of the micrometer unit, you’ll also need to purchase the appropriate case gauges for each of your cartridge types and then you’re ready to go. No other measuring instruments are needed (yep, no calipers are required).

L.E. Wilson case gage gauge shoulder bump depth micrometer measuring tool

Using the Wilson Depth Micrometer (perhaps a better name is Shoulder Bump Micrometer) is a straightforward process. Simply take your fired brass and insert it into the case gauge and place the micrometer top onto the primer side of the gauge. While holding the micrometer top firmly against the case gauge in one hand, slowly turn the micrometer until you feel it stop. You can back off and turn it again to verify the stop point and once you have it, look at the measurement on the micrometer. Now insert a sized piece of brass and repeat the procedure. Take note of the new number and subtract it from the fired brass number and you now have an exact amount of shoulder bump. Continue to adjust your sizing die until you have the correct amount of shoulder bump and you’re ready to size all your brass.

Watch Video to See how Shoulder-Bump Measuring Micrometer Tool Works

Guys, in this case a VIDEO is worth more than a thousand words. It may not be obvious from the photos how this system works. In fact, it is fast and easy. Drop brass into cartridge-specific case gauge, then put the Micrometer unit on top, and dial to touch. The video shows how this works.

SUMMARY — Tool is Fast, Precise, Repeatable, and Easy to Use — We Like It
The beauty of this tool is the simplicity with which it works. It uses a very accurate micrometer to simply measure how much further your brass is sitting forward inside the case gauge. After a couple uses, you’ll find that this tool is fast, accurate and incredibly repeatable. That gives you confidence that your brass is being sized properly. Ultimately, I found that using the micrometer top really became a joy as I set up a new set of dies and as I sized my brass, I could easily check the consistency as brass came off my press. If you’re looking to improve your sizing game, give the L.E. Wilson Case Gage Depth Micrometer a try. MSRP is $130.00.

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August 22nd, 2023

Flash-Hole Fixing — How to Clear Flash-Hole Obstructions

Flash-hole reamer

Even with high-quality brass from Lapua, Peterson, Norma, Alpha and RWS, occasionally you may find one or two cases per box which have a small flake or obstruction in the flash-hole. This will appear like a thin crescent on one side of the flash hole (see photo). You should inspect ALL new brass before loading to identify any pieces with a partially-obstructed flash hole. It’s a good idea to remove any flake or thin crescent left as an artifact of the flash-hole forming process. Because the flash-hole itself is normally centered and of the correct diameter, it is not necessary to ream the flash-hole to a larger diameter. All you really need to do is remove the small obstruction(s). This can be done quickly with inexpensive tools.

Use a Small Pin Vise to Remove Flash-Hole Obstructions
Folks have asked if there is a tool that can remove obstructions from a Lapua small, BR-sized flash hole without opening the hole size. The Lapua PPC/BR flash hole is spec’d at 1.5mm, which works out to 0.059055″. Most of the PPC/BR flash-hole uniforming tools on the market use a 1/16″ bit which is nominally 0.0625″, but these often run oversize — up to 0.066″.

If you want to just clear out any obstructions in the flash hole, without increasing the flash hole diameter, you can use an inexpensive “pin vise” with an appropriate drill bit. For $0.99 ($0.50 on sale), eHobbyTools.com sells a 1.5mm drill bit, item 79186, that matches the Lapua flash hole exactly. Other vendors offer a #53 pin vise drill bit that measures .0595″ or .060″ (depending or source). An 0.0595″ bit is close enough. You can find pin vises and these small-diameter drill bits at hobby stores.

Pin vises Lapua Flash hole

For quite some time, Sinclair Int’l has sold a similar device for small (PPC and BR-size) flash holes. Like the 07-3081 unit for large flash holes, the 073000 Reamer for small flash holes works from the outside, so it can index off the primer pocket. It reams to .0625″, and also costs $29.99. The standard dimension for Lapua 220 Russian and 6mmBR flash holes is 1.5mm or .0590″. This tool will permit standard-size decapping rods with .0625″ tips to work without binding. However, note that both Forster and Redding normally supply .057″ decapping pins with their PPC and BR dies. So, it is NOT necessary to ream your Lapua BR/PPC flashholes, unless you prefer to do so for uniformity. It IS, however, a good idea to check BR/PPC flash holes for burrs before loading the first time.

AccurateShooter Sinclair Flash Hole Reamer

NOTE: If you purchase either the 073081 or 073000 Sinclair Flash Hole Reamer tools, we recommend you mic the cutter tip before you process a bunch of cases. Sometimes a tip comes through that is oversize. This will ream the flash holes larger than you may intend.

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August 21st, 2023

Measure Groups Easily with Ballistic-X App for SmartPhones

Ballistic-X group measure measuring plot software Android Apple iOS
Ballistic-X Apple (iOS) version shown. There is also a Ballistic-X Android App.

Here’s something all shooters need — a smartphone App that calculates bullet-hole group sizes from your own photos. The Ballistic-X App is simple to use. Take a photo of your target, set some values (such as bullet diameter and distance to target), then use the touchscreen to place circles around each hole. The App will calculate group size (in MOA or Mils), distance to point of aim, and provide all the info in an overlay. Then click “save” to record your group for posterity!

Ballistic-X group measure measuring plot software Android Apple iOS

This App works well, is relatively easy to set-up, and costs just $7.99. It is available for both Android devices and iOS (Apple) devices. There are other ways to measure group sizes from target images, such as the excellent On-Target program, which we have used for years. However On-Target requires a software installation on a Windows platform desktop or laptop. Ballistic-X is a simple, easy-to-install App with versions for both Android and iOS (Apple) Mobile devices.

Google Play app store source
Download Android App
Apple store Ios app store source
Download Apple App

The Ballistic-X App has a relatively easy-to-use interface. Of course you can choose either MOA or Milrad group values, and Inch or Metric dimensions. There are various labeling options that provide useful info for Load Development. There is even an ATZ (Adjustment To Zero) feature for adjusting your turrets.

How to Use Ballistic-X App

1. Select Photo Source — Choose Camera to take new photo or get image from Photo Library.

Ballistic-X group measure measuring plot software Android Apple iOS

2. Set Reference Values — Select Bullet Diameter and enter Distance to Target.

3. Establish Scale on Image — Mark two points on target photo to set scale.
For example, if the target has a 1″-square grid lines, mark two points on grid for 1″ distance.

4. Mark Point Of Aim — Put the central X on the aim point.

5. Designate Shot Locations — Place the green circles around each shot.

Ballistic-X group measure measuring plot software Android Apple iOS

6. Finalize Data Display — Position Overlay, select size/color options, and export file.

Ballistic-X group measure measuring plot software Android Apple iOS

Android Options — Range Buddy FREE App
Along with Ballistic-X, there is another Mobile App, Range Buddy, that also measures shot groups. Range Buddy is currently offered for Android devices only. It is FREE, but has adverts. Range Buddy isn’t bad, but users complained about the program crashing, and there are compatibility issues with newer phones. We recommend you pay $7.99 and stick with Ballistic-X.

Ballistic-X group measure measuring plot software Android Apple iOS

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August 19th, 2023

6mm Creedmoor Load Data from Sierra Plus PRB Bonus

6mm Creedmoor 6.5 Creedmoor load data Sierra Bullets
NOTE: The 6mm Creedmoor now does have an official SAAMI specification. It is no longer just a wildcat.

CLICK HERE for Sierra Bullets 6mm Creedmoor LOAD DATA PDF »

Sierra Bullets Load Data 6mm Creedmoor reloading tips

Sierra Bullets has published load data for the 6mm Creedmoor cartridge, a necked-down version of the popular 6.5 Creedmoor. Sierra has released very comprehensive 6mm Creedmoor load data, covering fifteen (15) different bullets from 55 to 110 grains. NOTE: Hornady-brand brass was used for Sierra’s 6mm Creedmoor load tests, not the newer, stronger Lapua 6.5 CM brass with small primer pockets. Hand-loaders using Lapua 6.5 Creedmoor brass necked to 6mm may have to adjust their loads.

Sierra writes: “As soon as the 6.5 Creedmoor was released in 2007, a 6mm version was being envisioned. After the 6mm Creedmoor demonstrated its worth at 1000 yards it began to catch the attention of Precision Rifle Series (PRS) competitors. The 6mm Creedmoor is a great fit for those looking for an AR platform-friendly cartridge. It delivers velocities very similar to the .243 Win and yet fits the AR10 magazine length[.] The 30-degree shoulder makes this a very efficient case and helps prolong case life as well. The 6mm Creedmoor works well with powders such as H4350, [RE-16], RE-17, and Ramshot Hunter for heavier long-range bullet weights. Slightly faster powders such as RE-15, Win 760, and Vihtavuori N540 work well with lighter weight bullets.”

Sierra Bullets Tested for 6mm Creedmoor Load Data
55gr BlitzKing (#1502)
60gr HP (#1500)
70gr HPBT (#1505)
70gr BlitzKing (#1507)
75gr HP (#1510)
80gr SBT (#1515)
85gr Spitzer (#1520)
85gr HPBT (#1530)
90gr FMJBT (#1535)
95gr HPBT (#1537)
95gr TMK (#7295)
100gr Spitzer (#1540)
100gr SBT (#1560)
107gr HPBT (#1570)
110gr HPBT (#1575)

In developing its 6mm Creedmoor load data, Sierra tested a very wide selection of propellants, two dozen overall. For the smaller bullets, fast-burning powders such as Benchmark, H4895, and CFE223 were tested. For the heavier 100+ grain bullets, Sierra tested a selection of medium-burn-rate powders including H4350, Reloder 16, Reloder 17, Varget, and Superformance. Sierra did a very thorough job. We know this information will be welcomed by 6mm Creedmoor shooters.

Don’t know what powder to try first? For the 107-110 grain bullets, if you want best accuracy and low ES/SD, our Forum members recommend Alliant Reloder 16 and Hodgdon H4350. If you are seeking max velocity with the 110-grainer, look at Hodgdon Superformance and Reloder 19.

Here are Sierra’s 6mm Creedmoor Load Data Charts for 90-95 grain bullets plus the 107gr MK and 110gr MK. There are five other tables for other bullet types.

6mm Creedmoor 6.5 Creedmoor load data Sierra Bullets

6mm Creedmoor 6.5 Creedmoor load data Sierra Bullets

6mm Creedmoor 6.5 Creedmoor load data Sierra Bullets

6mm Creedmoor 6.5 Creedmoor load data Sierra Bullets


BONUS: PRB 6mm Creedmoor and 6.5 Creedmoor Load Survey

The Precision Rifle Blog compiled Load Data from PRS Competitors, for both 6mm Creedmoor and 6.5 Creedmoor. This is a good place to start. PRB surveyed the match loads for “173 of the top-ranked precision rifle shooters in the country”. One cautionary note: These PRS guys may be loading fairly hot, so work up gradually, 0.3 grains at a time. CLICK HERE.

PRB precision rifle blog pet loads what pros use 6.5 Creedmoor 6mm CM

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