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April 14th, 2022
Here’s something truly innovative — a 3D-printed metal rimfire receiver!
Forum member Marcos G. (aka MFP_BOP) has designed and created his own rimfire action. But it’s not machined or forged. This new action was created with a 3D sintered metal printer. A 3D modeler by profession, Marcos has the requisite skill set and access to a very high-tech (and expensive) metal printer. As printed, the actual receiver is shown below. It has just been sent out to be age-hardened to 40 HRC, after which final finish work (e.g. cleaning up tenon threads) will be done. To learn more about this 3D-printing project, read this FORUM Thread.
When most of us think of 3D printing, we think of small plastic parts — nothing as strong as steel. But there are 3D printers that employ sintered metal to build complex metal components. Marcus says the receiver he’s created should have “stated yield and tensile strength similar to investment casting.” The material used for the action is 15-5 PH® Stainless Steel (in sintered form).
The action was designed to use a PT&G 40X rimfire bolt. Marcos notes that “There is an extraction cam inside of the action, something that would be very hard or impossible to do by regular machining and/or EDM.”
Born in Brazil, Marcos now lives in New Zealand. He tell us that: “New Zealand is a very gun-friendly country. I just need my A-CAT license to make [a receiver.]” So there are no special legal restrictions (as might apply in the USA). The printer is EOS270 laser metal sintering machine. Marcos says: “The current price for one of those machines is in five figures, but I am 99.99% sure that in 5-7 years this technology will be readily available to anyone.”
As designed, the receiver was 1.4″ in diameter. Marcos reports it came out of the printer at 1.403″. The designed boltway is .690″ and it came out .687″. Marcos notes: “I haven’t noticed any warping. The threads are rough, really! Interior and exterior finishes are really good though, probably because of the way it’s been printed: upside down (must have gone through tumbling afterwards). I will have to run some taps and single-point-cut the tenon threads to clean them up.”
Marcos says the actual printing process took a lot of time: “I should have asked how long it took to be printed!” But consider this, the 7″-long receiver is created in layers only 20 microns thick, so you can understand why the process took so long.
Reasons to Print a Rimfire Receiver
Marcos 3D-printed his own action basically to save money: “Some may be asking why I printed this receiver. Here’s a little history… I tried different ways to bring a Stiller 2500X action into New Zealand. The final price to my door was NZ $3000.00 (about $2195.00 USD). Designing and making one would be way cheaper, but I felt nobody here could machine the internal abutments with precision. Also printing was still a little cheaper and printing offered the chance to put in it all details I wanted — such as M4 threads, internal cam, and fillets.”
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March 3rd, 2018
This story, from our Gun of the Week Archives, offers a good intro to the 30 BR cartridge, which is still the leading chambering for short-range Score Benchrest.
What’s better than one custom-built 30 BR with gorgeous wood and top-shelf components? A matching pair of course. Just ask Australian shooter Greg Roche (“Caduceus” in our Forum). A decade ago, Greg spent two years living and working in the USA. While in America, he commissioned two matched custom rifles to bring back to Australia for Hunter Class BR matches. Though the look-alike rigs are both chambered in 30 BR, one is designed for the Australian “Traditional” centerfire Hunter Class (10-lb limit), while the other is purpose-built for the “Custom” centerfire Hunter Class (14-lb limit). The 10-lb Traditional rifle features a fully-functioning two-round magazine and a 6-power scope. In contrast the Custom Class rifle is a single-shot action, with a 45X Leupold scope. The Custom weighs 13.5 pounds so it can also be used in traditional Heavy Varmint Benchrest matches if desired.
Tale of Two Rifles
Story and Photos by Greg Roche (“Caduceus”)
The USA boasts some of the finest precision rifle-builders and Benchrest parts suppliers in the world. Before returning to Australia after two years in the States, I decided to have two special BR rifles built using American components and skilled labor. I wanted a matched pair–twin guns that would be as handsome as they were accurate. The heavier gun of the pair, the 13.5-lb Custom Class rifle, features top-of-the-line (but well-proven) technologies and components. With the 10.5-lb Traditional Class rifle, we had to develop new solutions to allow the 30 BR cartridge to feed from a functional two-round magazine. Here is my saga of how my twin 30 BRs were conceived and built, and how they have performed in competition.
| BACKGROUND — The 30 BR for Score Competition
The 30 BR is a wildcat cartridge based on a necked-up version of the 6mmBR Norma case. It originated in U.S. Benchrest circles where it found its niche in Varmint For Score (VFS) matches. Unlike traditional Benchrest, where group size determines the winner, VFS matches are shot on a target with multiple, concentric-ringed bullseyes. Point total is based on “best edge” shot location (one shot per bull). In score competition, the 30 BR’s “supersized” .308-diameter hole offers an advantage over the 6mm hole created by a 6 PPC, the dominant group BR chambering.
The starting point for loading the 30 BR wildcat is Lapua 6mmBR brass. These are necked up as a single-step operation using a .30 caliber tapered expander ball (or dedicated expander mandrel). This will leave a bulge in the neck, so the expanded case neck is normally turned to bring the thickness down to the correct dimension for the chamber. I turned these necks down to .010″ wall thickness using a Stiller neck-turning tool. It features an eccentric mandrel similar to the Nielson “Pumpkin”. Loaded rounds measure .328″ neck diameter. This gives minimum clearance in my .330″ neck chamber, so very little neck resizing is needed after firing. Cases are trimmed to 1.500″ prior to turning to ensure consistency since the Stiller tool indexes the length of cut off the case mouth. Other than that, cases are just chamfered, loaded and made ready to shoot. No special fire-forming is required.
17-Twist Barrels for Both Rifles
Texan gunsmith Mike Bryant chambered both barrels. Mike also polished both barrels to a high-gloss to match the receivers. In this game, barrels are consumables, much like powder and primers, so most owners wouldn’t bother to polish their barrels. However a 30 BR barrel can provide up to 5000 rounds of accurate life (unlike a 6PPC barrel which might be tossed after 800-1000 rounds.) So, these barrels are likely to be on the rifles for many seasons. Given the high-gloss finish of the Grizzly actions and the beauty of the Red Cedar stocks, it would have been an injustice to leave a dull finish on the barrels.
The chambers were both cut with the same reamer supplied by Dave Kiff of Pacific Tool and Gauge. Randy Robinett, one of the originators of the 30 BR wildcat, specified the reamer dimensions. Randy’s 118gr, 10-ogive custom BIB bullets and the 30 BR cartridge enjoy a winning track record in the USA. The 30 BR Robinette reamer has zero free-bore and a .330″ neck, and is optimized for the BIB 118s. The bullets perform best when seated far enough out to jam firmly into the rifling as the bolt is closed. The long ogive means the bullet’s bearing surface is very short.
Slow Twists for Maximum Accuracy
You may note the unusually slow twist rate of both barrels. In most .30-caliber chamberings, the barrel twist rate is 1:11 or 1:12 to stabilize 150gr to 200gr bullets. The 30 BR is optimized for 115gr to 118gr flat-base bullets and 1:17 provides sufficient stability at muzzle velocities around 2900-3000 fps. In competitive Benchrest, where every thousandth of an inch counts, over-stabilization of projectiles can hurt accuracy, so “just stable enough” is the goal; hence the 1:17 twist.
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Case Forming, Case Prep, and Reloading Methods
A Sinclair case neck micrometer indicates neck thickness of 0.010″ after neck turning.
 30 BR dies are readily available from a number of manufacturers. I personally use Wilson neck and seating dies with a Sinclair Arbor press, but Redding and Forster both supply high-quality threaded dies for use in a conventional press. For under $100.00 US, custom full-length dies can be obtained from Hornady and CH Tool & Die by sending them reamer prints or a couple of fired cases. Harrell’s Precision offers “semi-custom” dies. Just send them some fired cases and they select a pre-made CNC-cut die that ideally fits your chamber. You can ask the Harrell brothers for a die that’s tighter at the shoulder or base, or otherwise customized to your preferences.
Load Development and Accuracy Testing
With cases formed and bullets selected, load development is simply a matter of choosing the right primer, powder and charge weight, and loading the most consistent ammunition possible. The Lapua BR cases use a small rifle primer. The choice here was Federal 205 Match primers vs. CCI BR4 Benchrest primers. Some shooters have also had success using CCI 450 Magnum primers but it is very unlikely the small case needs this much spark to light off regular extruded powders. In my case, I selected Federal primers because availability tends to be better in Australia.
The relatively large bore-to-capacity ratio of the 30 BR case means that fast burning powders are the order of the day. Once again, US experience suggests H4198 (the Hodgdon equivalent of ADI AR2207) is the choice of match winners. The fact that H4198/AR2207 is an Australian-made product is an added bonus. So, I loaded up test rounds with AR2207 from 32.5 grains to 35.0 grains in approximately 0.3 grain increments. All bullets were seated to jam +0.010″ into the lands. This places the bullet base about two-thirds of the way down the neck and well short of the neck-shoulder junction.
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September 28th, 2017
GREAT DEAL — Complete Howa Barreled Actions (With Trigger) for $250.00
Howa makes excellent, smooth-running actions, and the Howa HACT 2-stage trigger is WAY better than most domestic factory triggers. Right now you can save big bucks on Howa 1500 barreled actions, complete with HACT trigger and trigger-guard. Pacific Tool & Gauge (PT&G) sourced a truckload of Howa barreled actions, which are now on sale. Available at $250.00 are: .204 Ruger, .223 Rem, .22-250. All these chamberings are offered with either light- or heavy-barrel contours. There is no extra charge for factory camo finishes.
Guys, this is an incredible deal — you can get a complete high-quality barreled action for less than the cost of a custom barrel. If you’re looking to put together a varmint rifle project this is a great option — just add the stock and scope of your choice.
These barreled actions would be great for custom hunting/varmint rifle projects — many have factory camo finishes. Howa barrels typically deliver easy sub-MOA accuracy (and often much better). NOTE: Some of these barreled actions may carry Weatherby or Nosler markings, but they were all made at the Howa factory in Japan.
Howa 1500 Barreled Actions Have Excellent 2-Stage Hact Triggers
 PT&G’s Howa 1500 barreled actions feature the very nice Howa HACT trigger. This is an adjustable, two-stage trigger, set for about 3 pounds (combined stages). Crisp and repeatable, this is an excellent trigger for a factory gun. In our opinion, the HACT trigger is clearly superior to the trigger on the Ruger RPR, as well as the Savage AccuTrigger. And there is no annoying Glock-style safety lever in the middle of the trigger blade. The 2-stage design and pull weight range works well for a hunting rifle or a rig for PRS competition.
Writing for the Western Outdoor News, WONews.com, Steve Comus has field-tested the new HACT Trigger. Steve writes: “I always liked two-stage triggers, because of the way I could take-up the slack and then actually know when the rifle was going to go off. The take-up on the [HACT] trigger was fast and easy. The crisp, positive release when pressure was put on during the second stage [reminded me] of some of the target rifles I shot through the years.”
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April 9th, 2017
A friend of ours recently took delivery of a new barrel which was chambered by a smith who had done the original build on the rifle, but who had not headspaced the barrel on the action itself this time. The smith headspaced based on his old records. Our friend happily screwed on his nice, new barrel and headed to the range. After the first few rounds, with known, safe loads, he was seeing deep craters on his primers, and then he even pierced a few primers with loads that should never have done that. Interestingly, the brass was not showing any of the other pressure signs. This was with bullets seated .015″ out of the rifling.
We were thinking maybe too much firing pin extrusion or maybe he got a hot lot of powder. Then I asked him to email me dimensions off his fired cases compared to new, Lapua brass. He emailed me that his shoulder moved 0.0105″ forward. I sent an email back saying, “hey, that must be a typo, you meant 0.0015″ right — so your shoulder moved one and a half thousandths correct?” The answer was “No, the shoulder moved over TEN thousandths forward”. Ahah. This explained some of the cratering problem in his brass. His cases were able to bounce forward enough in the chamber so that the primer material was smearing over the firing pin. And now he has brass that is “semi-improved”.
The point of the story is always check your headspace when you receive a “pre-fit” barrel, even from the smith who built the rifle. Purchase Go/No Go gauges for all your calibers. Headspace is not just an accuracy issue, it can be a safety issue. Pierced primers are bad news. The debris from the primer cup can blow into the firing pin hole or ejector recess causing a myriad of problems.
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March 6th, 2017
At the request of our readers, we provide select “Deals of the Week”. Every Monday morning we offer our Best Bargain selections. Here are some of the best deals on firearms, hardware, reloading components, 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.
1. MidwayUSA — Vortex 6.5-20x44mm Viper Scope, $329.99
Here’s a great deal on a versatile Vortex Viper 6.5-20x44mm scope that can be used for target work, varmint hunting, or even tactical games. This scope features XD (low dispersion) glass, side-focus parallax, and a 30mm maintube. It offers 1/4-MOA clicks with 65 MOA of elevation adjustment and side-focus parallax control. Two reticle choices are offered: 1) Dead-Hold BDC, and 2) Mil-DOT. Backed by Vortex’s VIP Unconditional Lifetime Warranty, this Viper is on sale for just $329.99 at MidwayUSA, with free shipping.
2. Cabela’s — Lyman T-Mag II Turret Press, $139.99 with CODE
This week, with Discount Code “17SPRING” you can get the rugged Lyman T-Mag II Press for just $139.99 at Cabelas.com. That’s $20 cheaper than the best price we’ve found elsewhere. Every serious reloader should have a good turret press. You can put a variety of seating dies on the turret and use your single-stage press for sizing duties. Or use the turret for bullet pointers or other specialized dies. The new six-station T-Mag II features a strong cast-iron frame and improved Turret Retention System for smooth indexing. The Turret head detaches so you can easily change calibers (or complete die sets). Included are priming arm, primer catcher, and turret handle. NOTE: We did walk through Cabela’s purchase process and confirmed the $20.00 Price reduction with CODE “17SPRING”.
3. Grafs.com — Hornady Ultrasonic Cleaner Plus Tumbler, $99.99
Here’s a great combo deal from Grafs.com. For just $99.99, you get BOTH the Hornady Lock N Load Sonic Case Cleaner (MSRP $99.99) AND the Hornady Vibratory M2 Tumbler (MSRP $49.99). That’s a 47% savings off normal retail. This combo give you the option to clean your brass ultrasonically or by using the traditional tumbling with media method. PLUS — with this bundle you get a free Hornady insulated Mug, a $12 value.
4. Midsouth — Lee Auto Bench Priming Tool, $25.96
This relatively new bench tool does the job very well, and its easy to change primer sizes and shell holders. The “feel” of this tool is very good (better than most other bench priming units). If you like to pre-prime cases before using a progressive — this tool gets the job done fast. The tool includes a new folding tray with built-in primer flipping feature that allows direct filling from common primer boxes. The tool mounting holes are spaced for the Lee Bench Plate system (#006-90251) or the device can be mounted directly to your workbench. NOTE: Reviews by verified purchasers have been very positive.
5. Cabin Fever Sports — PT&G Rem 700 Action + Trigger, $380.00
Here’s a great deal on Pacific Tool & Gauge-crafted Rem actions with PT&G bolts. These are new Remington-made actions, blueprinted, with PT&G bolts fitted. Sold by PT&G’s retail outlet Cabin Fever Sports, these are pretty much the same as PT&G’s $640 actions with special promo pricing. The prices for the Right Hand actions are $380.00 to $420.00 depending on bolt face. Cabin Fever Sports also has roughly 20 Left Hand (LH) Rem actions at $399.99. You can choose trigger type and add options, such as bolt fluting, for a few dollars more. Order online, or call in and ask for special pricing.
6. Natchez — Hornady 22-Cal Varmint Bullets, $9.99 Per 100
Headed out for a varmint safari soon? Need inexpensive bullets for your .223 Rem or 22-250? Then check out this deal on Hornady 55-grainers from Natchez. Get 100 Soft Point .224-Caliber FB bullets for just $9.99. At that price, it doesn’t hurt so much when you shoot 1000+ rounds over a weekend. With good expansion, these bullets work great on prairie dogs and other small critters. Note: These sale bullets ship in a bag, not the box as shown.
7. Amazon — Lyman Electronic Trigger Pull Gauge, $47.99
If you are serious about your precision firearms, you need one of these. We use the Lyman Electronic Trigger Pull Gauge to test the triggers on all our match and varmint rifles. The unit is precise and repeatable. Once you try one of these you won’t want to go back to crude spring trigger gauges. Amazon.com offers this unit for $47.99 with free shipping for Prime members. Walmart also has it for $51.95 with free shipping or free in-store pickup.
8. CDNN Sports — Taylor 3″ Semi-Serrated Lock-Blade Knife, $6.50
Amazing bargain — This Taylor Lock-Blade Knife features a 3″ stainless steel, titanium-coated blade. The semi-serrated blade works well on heavy straps/materials, making this Taylor knife more versatile. Weight is 9.5 ounces. Open the knife is 8″ long, closed 4.9″. The blade has a thumb knob for easy one-handed opening while the handle boasts a handy stainless steel pocket clip. A crazy-good deal at $6.50, this knife is covered by Taylor Brand’s limited lifetime warranty.
9. Amazon — AR500 Steel 8″-Diameter Gong, $19.95 Delivered
We like reactive targets. It’s fun to “ring steel” and see a target move instantly when hit. For just twenty bucks (including shipping), it’s hard to go wrong with this 8″ AR500 Steel Gong. The 8″-diameter size is big enough for zeroing at 200 yards, yet offers a nice challenge at 500 yards and beyond. There is also a 6″-diameter model for just $14.00. Both sizes currently ship for FREE.
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September 20th, 2016
Here’s something truly innovative — a 3D-printed metal rimfire receiver!
Forum member Marcos G. (aka MFP_BOP) has designed and created his own rimfire action. But it’s not machined or forged. This new action was created with a 3D sintered metal printer. A 3D modeler by profession, Marcos has the requisite skill set and access to a very high-tech (and expensive) metal printer. As printed, the actual receiver is shown below. It has just been sent out to be age-hardened to 40 HRC, after which final finish work (e.g. cleaning up tenon threads) will be done. To learn more about this 3D-printing project, read this FORUM Thread.
When most of us think of 3D printing, we think of small plastic parts — nothing as strong as steel. But there are 3D printers that employ sintered metal to build complex metal components. Marcus says the receiver he’s created should have “stated yield and tensile strength similar to investment casting.” The material used for the action is 15-5 PH® Stainless Steel (in sintered form).
The action was designed to use a PT&G 40X rimfire bolt. Marcos notes that “There is an extraction cam inside of the action, something that would be very hard or impossible to do by regular machining and/or EDM.”
Born in Brazil, Marcos now lives in New Zealand. He tell us that: “New Zealand is a very gun-friendly country. I just need my A-CAT license to make [a receiver.]” So there are no special legal restrictions (as might apply in the USA). The printer is EOS270 laser metal sintering machine. Marcos says: “The current price for one of those machines is in five figures, but I am 99.99% sure that in 5-7 years this technology will be readily available to anyone.”
As designed, the receiver was 1.4″ in diameter. Marcos reports it came out of the printer at 1.403″. The designed boltway is .690″ and it came out .687″. Marcos notes: “I haven’t noticed any warping. The threads are rough, really! Interior and exterior finishes are really good though, probably because of the way it’s been printed: upside down (must have gone through tumbling afterwards). I will have to run some taps and single-point-cut the tenon threads to clean them up.”
Marcos says the actual printing process took a lot of time: “I should have asked how long it took to be printed!” But consider this, the 7″-long receiver is created in layers only 20 microns thick, so you can understand why the process took so long.
Reasons to Print a Rimfire Receiver
Marcos 3D-printed his own action basically to save money: “Some may be asking why I printed this receiver. Here’s a little history… I tried different ways to bring a Stiller 2500X action into New Zealand. The final price to my door was NZ $3000.00 (about $2195.00 USD). Designing and making one would be way cheaper, but I felt nobody here could machine the internal abutments with precision. Also printing was still a little cheaper and printing offered the chance to put in it all details I wanted — such as M4 threads, internal cam, and fillets.”
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January 21st, 2016
Savage’s new 10/110 BA Stealth tactical rifle
Here are eleven of the more interesting products (and people) we saw on Day Two of SHOT Show. This is only the tip of the iceberg folks. With 12.5 miles of aisles, and over 1600 Exhibitor booths, we can only show a tiny fraction of the products on display. There are tactical rifles and gear everywhere in sight. We also found some interesting target systems and reloading tools. Stay tuned for more product previews tomorrow from SHOT Show at the Sands Convention Center.
Savage 10/110 BA Stealth
You asked for it — here it is — the new Savage 10/110 BA Stealth. This new rifle features a strong yet light aluminum chassis that accepts AR-compatible rear sections. Savage says the actions have been “factory blueprinted”. Available chamberings are: 6.5 Creedmoor, .308 Winchester, .300 Win Magnum, and .338 Lapua Magnum. We shot this rifle, in .308 Win, at Media Day and we liked the ergonomics.
NEW Alliant Reloder 16 Powder
Alliant’s engineers showed us “top-secret” data charts comparing various popular powders. This new Reloder 16 is one of the most temp-stable propellants ever created. Burn rate is slightly faster than H4350. Initial accuracy results have been very promising. AccurateShooter.com will be testing this powder very soon. Stay tuned.
Savage A17 in Laminated Thumbhole Stock
Here is the 17 HMR Savage A17 in new laminated, thumbhole stock. We want one. The wood-stocked A17 balances well and feels good. This is a definite upgrade over the original plastic stock.
Vortex 6-24x50mm FFP Razor HD
Vortex unveiled a very impressive new tactical scope, the 6-24x50mm Razor HD. Vortex says this top-of-line optics was engineered to compete with anything on the market — including the big-name German brands. The glass was excellent, and we loved the fact the elevation turret offers a full 25 MOA of elevation in one rotation. Great feature.
Pardini Competition Air Rifle
Design for Olympics-level competition, this new Pardini is one of the most sophisticated air rifles ever made. It has a very sophisticated loading system that allow you to load pellets without changing your hold on the rifle. It was designed with input from Olympic Champion shooters.
Ken Oehler and the New System 88
Chronograph Guru Ken Oehler explained the capabilities of his “enterprise-grade” System 88. This combines a proof-channel chronograph at the firing line with sonic sensors at 1000 yards (and other distances in between if desired). This allows very precise calculation of true bullet BCs.
$38,000 JANZ Multi-Barrel, Multi-Caliber Revolver
You are looking at the world’s most expensive wheelgun, the JANZ multi-caliber system. Custom-built for each customer, this amazing revolver shoots multiple cartridge types — even rimfire. As far as we know this is the only revolver in the world that shoots .22 LR rimfire as well as centerfire cartridges up to .500 SW. The builder, JANZ-Praszisionstechnik GmbH, will craft the gun with as many barrels and cylinders as the owner wants. As shown in the photo, the price is around $38,000.
New Bullets from Sierra
Sierra Bullets had its new Tipped MatchKings on display, and well as the very impressive new 7mm 183-grain MatchKings, which are “tip-uniformed” at the factory. Lester Bruno shot some of these 183-grainers and said they held amazing waterline at 1000 yards, indicating that the bullet-to-bullet BC is very consistent. Listed G1 BC for the 183gr MK, SKU #1983, is .707.
Jerry Miculek, World’s Fastest Wheelgunner
We met up with the legendary Jerry Miculek at the Hornady Booth. The world’s fastest wheelgunner (and a darned good rifleman too) had fans lined up for autographs. What’s the secret to Jerry’s success? Hard work, hands of steel, and a positive attitude.
New Throat Erosion Gauge from PT&G
Pacific Tool and Gauge had a bunch of new products on display. One item that caught our eye was an interesting Throat Erosion Gauge. Index marks on the main shaft let you determine, with precision, how much your throat has moved. Screw-on, caliber-specific pilots let you gauge all popular calibers.
Sig Sauer 5-25x52mm “Whiskey 5″ SFP Scope
We were very impressed with Sig Sauer’s optics, which offer a lot of capability for the price. The new 5-25x52mm Whiskey 5 optic offers positive controls and a nice illuminated reticle center (good for low light). The “street price” is around $1200.00 – $1300.00. READ Full Review Here.
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October 24th, 2015
At the recent IBS 600-Yard Nationals, the 6mm Dasher cartridge was the most popular chambering for both Light Guns and Heavy Guns. The Dasher, a 40° improved version of the 6mmBR Norma case, can definitely shoot — no question about that. But the Dasher has one less-than-ideal feature — its very short neck. This makes it more problematic to shoot a wide variety of bullet types — short bullets as well as long. In addition, the short neck makes it harder to “chase the lands” over time.
For those folks who like the performance of the 6mm Dasher, but prefer a longer neck, there is an excellent alternative — the 6mm BRDX. This wildcat shares the 40° shoulder of the Dasher and has nearly the same capacity. Like the Dasher, the 6 BRDX can drive 100-107gr bullets to the same 3000-3050 FPS accuracy node. But the 6 BRDX has a longer neck than the Dasher. Depending on your “blow length”, the 6 BRDX will typically give you about .030″ to .035″ more usable neck length. That may not sound like much, but it is very useful if you have a longish (.110″+) freebore and you still want to shoot shorter bullets in the lands for some applications.
Your editor has a 6mm BRDX and I really like it. The neck is long enough to let me shoot 90-grainers loaded into the lands as well as 105-grainers. Fire-forming is pretty easy. I just load very long (so there is a firm jam) and shoot with 30.0 grains of Varget and a 100+ grain bullet. With a Brux barrel, my BRDX easily shoots quarter-MOA, with some 100-yard groups in the ones in calm conditions. This is with a Stiller Viper Action, and Shehane ST-1000 stock bedded by Tom Meredith.
6mm BRDX Reamer, Dies, and Hydro-Forming Service
It’s not difficult to set up a rifle to run the 6 BRDX. Dave Kiff’s Pacific Tool & Gauge has the reamer (just tell him the freebore you want). Whidden Gunworks offers excellent BRDX sizing and seating dies. And if you don’t like fire-forming, give Darrell Jones of DJsbrass.com a call. Darrell can hydro-form 6 BRDX brass and even turn the necks to your specs. Darrell’s hydro-forming service saves you time and preserves precious barrel life.
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March 10th, 2015
 How’d you like to run AR-15 Mags in your Rem 700 bolt gun? Sound far-fetched? Well think again. Pacific Tool and Gauge has developed a unique bottom metal system for Rem 700 short actions that works with standard AR-15 mags, providing reliable function with .223 Rem (5.56x45mm) rounds. The AR-mag compatible Rem 700 Bottom Metal costs $129.00 by itself, or $149.00 with a C-Products 10-round magazine.
The system works with straight 5-round, 10-round, and 20-round metal mags as well as larger, angled 30-round metal mags. (Because they are thicker, Magpul mags and other polymer magazines do not work with this PT&G bottom metal system.)
At SHOT Show, Dave Kiff showed us the AR-Mag compatible bottom metal. “It took a lot of time to get the geometry just right, but we’re proud of this product”, Dave said. A PT&G exclusive, this special bottom metal as been designed to fit in all Remington 700 standard factory stocks right off the shelf with minimal inletting. This bottom metal features a handy mag release button incorporated into the side of the bottom metal (this is more reliable and secure than a mag release in the trigger guard).
Slight Modification Required During Installation
Customers purchasing this bottom metal will need to modify their Rem 700 actions very slightly, to create a little extra clearance. The Feed Bevel (left photo) needs to be opened to 0.660″, while the mag well needs to be opened to 0.900″.
Product tip from EdLongrange. We welcome reader submissions.
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September 9th, 2014
If you own a Savage rifle, here’s a product you should consider. Pacific Tool & Gauge now offers precision-machined replacement bolt heads for Savages. This product, available in a variety of bolt face sizes for $49.50 per unit, can benefit nearly everyone who shoots Savage bolt guns.
CLICK HERE for Full Product Review of PT&G Savage Bolt Head
German Salazar’s excellent Rifleman’s Journal website features an in-depth review of the PT&G Replacement Bolt Head for Savage Bolts. Written by Norm Darnell, this detailed review explains the benefits of the PT&G replacements, compared to the standard Savage bolt heads. After polishing, the factory bolt head can become slightly dished. According to Darnell: “The area around the firing pin hole sometimes has an indentation deep enough to allow the primer to flow into this void. This makes an unsightly blemish on a fired primer and can lead to hard extraction or worse. One [Savage] rifle I inspected had a continuing problem with pierced primers despite reasonably mild loads[.]” Even after machining the factory bolt face to make it flat, Darnell encountered problems: “The firing pin hole seemed to wear excessively which was of some concern. Material strength of the … bolt head* appears to be the source of these recurring problems.”
After testing out PT&G replacement bolt heads, Darnell found that his problems were solved. With the PT&G replacement bolt head, “the cartridge case heads and primers indicated no case-head rounding or primer damage”. Darnell was convinced, so he proceeded to fit PT&B bolt heads “on all three of my 308 bolts and one 223 with one spare bolt of each.” It appears that PT&G has a winner here — a smart, very affordable product that remedies a commonly-observed problem with factory Savage bolt heads.
* In the article, author Darnell writes that Savage factory bolt heads are investment cast. Fred Moreo of Sharp Shooter Supply says this is not correct: “Savage bolt heads were NEVER investment cast. From the get-go they were machined from solid stock. In 1988 they went to special profiled 41L40 bar stock to save machining operations and heat treated to 35-42 RC.”
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July 29th, 2014
2014 and 2012 U.S. National F-TR Champion James Crofts is one of America’s top F-Class shooters. A member of the 2013 World Championship-winning F-TR Team USA squad, James knows a thing or two about long-range shooting, that’s for sure. But you may be surprised to learn how James sharpens his shooting skills at relatively short distances. You see, James often practices with a .22 LR rimfire rifle at distances from 50 to 200 yards. James tells us: “Shooting my F-Class rimfire trainer saves me money and improves my shot process and wind-reading abilities.”
Remington rimfire 40X barreled action in PR&T LowBoy stock with PT&G bolt.
Rimfire Training Teaches Wind-Reading Skills by James Crofts
Training with the rimfire is extremely useful and can be done from 25 yards out to 200 yards. I am lucky and can shoot 50 yards right off my back deck. That is far enough that any miscue on rifle handling will show up on the target. I use a two dry-fire to one actual shot routine for my practices. This gives me much more positive reinforcement without any negative reinforcement.
Wind reading is extremely important with a .22 LR rifle. I use a set of smallbore flags to aid my wind calls. The smallbore flags are a must and force you to look at the flags and mirage on each and every shot. If you think the flags at Camp Butner move a lot, try smallbore flags around tall pine trees.
Rimfire Training Is Cost-Effective
Rimfire ammunition is much less costly than centerfire ammo. Though .22 LR prices have risen in recent years (and rimfire ammo is harder to find), even now I can get a 500-round brick of .22 LR ammo for less than $75.00. That works out to fifteen cents a round. That’s a fraction of the cost of handloading .308 Win match ammo. Heck, you can pay 40 cents a piece for match-grade .308-cal centerfire bullets. Then you have to figure in brass, primers, and powder.
My CMP 40X Rimfire F-TR LowBoy Clone
My quest into the .22 LLR rimfire field started with an email from the Civilian Marksmanship Program (CMP) announcing Rem 40X stripped barreled actions for sale. I thought, “Hmmm… Could one of those little 40X barreled actions be turned into a F-Class training rifle?” My gunsmith Ray Bowman of Precision Rifle & Tool was brought in at this point.
After conferring with Ray, it was decided that he could indeed turn this into a F-Class training rifle. Ray contacted Dave Kiff of PT&G and ordered a new bolt for the Remington 40X rimfire action. Next was the stock decision. I decided to go with a PR&T Low Boy F-Class stock — this is an exact clone of the stock for my .308 Win F-TR competition rifle. Then a Jewell trigger was acquired to complete the components. Ray built this just like he would any custom rifle, other than using the stock barrel. The project turned out awesome. The rifle was a hammer from the beginning even with the stock barrel.
About James Crofts
This spring, James Crofts was chosen as the new Vice Captain for the USA F-TR National Team. James comes from a military background, having served 20 years in the U.S. Navy aboard fast attack submarines. James has also been a shooting member of the 8-man F-TR Team USA, and he is always one of the top shooters in any F-TR competition. James told us: “Now the work begins, but with Ray Gross as Captain I think we can handle it. It will be a tough act to follow. Darrell Buell and Mike Miller set the bar extremely high with back-to-back world championship gold medals.”
James Crofts — Photo by Kent Reeve.
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April 17th, 2014
Do you have a tactical rifle project in the works, or are you looking to upgrade the bottom metal on your existing bolt gun? Then head over to the PT&G website before the end of month. During April Pacific Tool & Gauge (PT&G) is running a Bottom Metal Blow-Out Sale. You can save 15-42% on quality Bottom metal for a variety of rifle types — Colt, Howa, Remington, Ruger, Winchester. On sale this month are both flush and extended options for detachable box magazines. In addition, you’ll find a variety of hinged, flush bottom metal sets for conventional internal magazines.
New PT&G Bottom Metal for Ruger Actions
Ruger owners take note — PT&G is now taking orders for DBM-capable Stealth bottom metal for Ruger rifles. This bottom metal in offered in both Short Action and Long Action Versions. It will fit the M77, M77 Scout (short action only), and M77 Hawkeye, and Ruger American (with aftermarket stock). The Short Action Version is now $99 (28% off) while the Long Action verision is $119.50 (20% Off).
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