Our friend Erik Cortina told us that Jim Borden of Borden Accuracy has developed a new “wide-body” action, the Borden BRMXD. Erik is building a rifle around this action to shoot at the 2016 Berger SW Nationals. The new BRMXD is Borden’s first venture into action bodies larger than 1.350″ in diameter. The round BRMXD action measures a stout 1.470″ in diameter and comes standard with bottom recoil lug. If the customer prefers, Border can deliver the action with a conventional recoil lug on the front. We like the looks of Borden’s new BRMXD, and we bet this new stainless action will be a smooth runner.
Borden BRM-XD Action Specifications:
• Action: BRM-XD
• Length: 8-1/8″
• Outside Diameter: 1.470″
• Port Length: Single Port: 2.750″
— Dual Port w/ Mini Port for BR / PPC: 2.750″ Loading & 1.8″ Eject Port
— Dual Port w/ x47 Family Port: 2.750″ Loading & 1.9″ Eject Port
— Dual Port w/ .284 Family Port: 2.750″ Loading & 2.4″ Eject Port
• Weight: 42.6 oz for Single Port
• Price: $1325.00 with bottom lug for a single port – $1400.00 for a dual port + shipping
• Price: $1250.00 for no lug (Glue-In Only)
Borden Accuracy will also offer a 0.215″ spacer for shooters who wish to use their current PANDA barrels with a new BRMXD action. This hardened steel spacer will cost $50.00 (introductory price).
A while back, Roy Bertalotto acquired a budget-priced Kimber 82G rimfire target rifle from the CMP. The Kimber comes with an oiled-wood stock that works fine for three-position training, but Roy wanted to shoot the gun for the bench. The original Kimber stock, with its narrow, radiused forearm, was not ideal for this purpose. Roy wanted a wide, flat fore-end, which is much more stable in the bags. Rather that spend hundreds on a new benchrest stock, Roy modified his Kimber’s original stock by slicing a section off the bottom of the stock and then replacing this with a 3/4″ X 2 3/4″ X 15″ piece of walnut.
WATCH Project Stages in Slide-Show Below:
Roy explains: “The modification I did on my Kimber 82G stock was done using a milling machine, hand planes, files, die grinder and sand paper. It can also be done with simple hand tools — it will just take longer. The first step is removing the wood on the bottom of the fore-end. This was accomplished in the milling machine. A scrap piece of 2X8 was mounted to the milling machine’s table and the surface milled to be perfectly flat. The Kimber stock was screwed to this 2X8 with two large screws and the bottom of the stock was milled flat. Once this was done, a piece of 3/4″ X 2 3/4″ X 15″ walnut was glued using West System epoxy to the cut out area. I use West System epoxy in boat building, but any good wood glue will work.”
After gluing the new bottom piece in place, Roy milled the sides to provide side flats with a radius to transition from the wider lower section to the narrower upper part of the fore-end. As a added enhancement, Roy contoured the rear of the fore-end to blend with the rear of the stock, adding what he calls “1965 Ford Mustang side scoops”. Roy then used a Die Grinder with a 1.5″ sanding wheel to modify the wrist area to provide more thumb relief.
Following the cutting, milling, gluing, and shaping, Roy sanded with 150 grit and 300 grit sandpaper before applying multiple coats of Tung Oil. Once the main stock was completed, Roy completed the project by crafting an extended buttplate from a couple pieces of 1/8″ aluminum and two 1.5″ aluminum tubes, “all polished to a slightly less than mirror finish”. NOTE: This metal buttplate assembly was made from scratch (other than the pad). This is not an aftermarket extension kit.
Overall the gun turned out very nicely. Log on to Roy’s RVB Precision webpage to learn more about this Kimber stock modification project, and view more photos of the building process.
Initially drawn to the 6mmBR and 6mm Dasher, I realized these cartridges wouldn’t feed from an AICS magazine system without extensive modification. I took a look at the 6mm Creedmoor, 6XC, and 6mm-6.5×47 Lapua (aka 6×47 Lapua), all of which feed well from a detachable magazine. At right you can see the 6×47 Lapua in an AICS magazine. It has the “Goldilocks factor” — not too long, not too short.
The ability to simply convert 6.5×47 Lapua brass to 6×47 brass by running the parent 6.5mm brass through a full-length Forster sizing die in a single step was what made me choose the 6×47 Lapua over the 6mm Creedmoor and 6XC (both excellent cartridges in their own right). I also own a 6.5×47 Lapua rifle, so I had a supply of 6.5×47 brass ready to neck-down. Being able to create 6×47 brass easily (one pass and done) was very appealing.
Left to right, below: 6mmBR, 6-6.5×47 Lapua, 6.5×47 Lapua, and .243 Winchester.
I cut the chamber end off my .243 Win barrel, threaded and chambered my rifle for the 6×47 Lapua cartridge. I have written a lengthy article on this cutting and re-chambering process. Home gunsmiths interested in this process can READ MORE HERE.
When the re-chambering was complete, I headed to the range and worked up a set of eight loads using Berger 108 BTHPs, H4350, Lapua brass, and CCI 450 primers.
Load development was a little trickier than with the 6.5×47 Lapua parent cartridge. The accuracy nodes were smaller. However, once I dialed in a load with Hodgdon H4350 and the 108-grain Berger BTHP, the rest was history. The 6×47 rig is now one of the most consistent rifles I own, holding just above 0.3 MOA for 5-round groups. Below is a 100-yard test target with 108-grain Berger BT in the 6×47 Lapua. Five-shot group sizes are (L to R): .369″, .289″, and .405″. The average size was .354″ or .338 MOA. [Editor: We think that is excellent accuracy for a tactical-type rifle shot from bipod.]
Learn More about this 6×47 Lapua Project
I’ve written more about this 6×47 rifle on my Rifleshooter.com website. To learn more about my experience with the 6×47 Lapua, click this link: 6-6.5X47 Lapua Review.
About the author: Bill has been a serious shooter for over 20 years. A former Marine Corps Sergeant, he’s competed and placed in High Power Rifle, ISPC, USPSA, IDPA, 3-Gun, F-Class, and precision rifle disciplines. In addition to being an NRA-certified firearms instructor and range officer, Bill has hunted big game in North America, South America, and Africa. Bill writes extensively about gunsmithing, precision rifles, and the shooting sports on his blog, Rifleshooter.com.
Shown above are bolts with TAC-6 Fluting and two-tone Vortex knobs. The fluting and knob installation are two different operations, priced separately.
Paul Fakenbridge of Pro Precision Rifles (PPR) is running a “Group Buy” promotion for AccurateShooter.com readers. For the next month, you can enjoy significant savings on a bolt-fluting job OR on the installation of a custom bolt knob. For Rem 700 bolts, the fluting is now $55 ($30 off), while a new custom PPR knob, installed, is $65 ($30 off). (NOTE: Knob installation does NOT include bolt fluting, and vice-versa.) Paul does excellent work, with a wide variety of fluting options. All fluting is done on a Haas TM1 with four-axis capability. Here is how the Group Buy, a limited-time offer, works:
For this Group Buy, PPR offers Bolt Fluting at $55.00 total (with $5.00/bolt going to AccurateShooter.com to help support the site.) The regular price for fluting Remington bolts was $85.00 so you save thirty bucks. You can choose from a variety of fluting styles for Remington bolts. While Group Buy terms apply to Rem bolts, ask about Savage and Tikka bolts — PPR has some options for them as well.
For this Group Buy, PPR offers a new bolt knob, installed, at $65.00 with $5.00 going to AccurateShooter.com. The $65.00 includeds the price of the new knob. The regular price was $95.00 including knob. Again, you save $30 with this Group Buy.
Advancements in barrel technology in recent decades have been impressive. Today’s premium barrels deliver accuracy that could only have been dreamed-of decades ago. And now a new development promises to help barrel-makers craft the most uniform, consistent, and stable barrels ever.
What’s the new technology? You may be surprised. It’s not a surface treatment, or a cryogenic bath. The latest development in barrel manufacturing is Degaussing — the process of de-magnetizing metal objects. Degaussing is now used in many industries to uniform metallic products and to prevent unwanted interactions with magnetic fields. LEARN MORE.
Degaussing is the process of decreasing or eliminating a remnant magnetic field. It is named after the gauss, a unit of magnetism, which in turn was named after Carl Friedrich Gauss.
At the recent IWA show in Germany, Vallon GmbH, a German manufacturer of degaussing machines, told us that two major Wisconsin barrel-makers have purchased Vallon industrial degaussing units. The units sold to the American barrel-makers are similar to Vallon’s EMS unit show below. This can degauss (i.e. de-magnetize) 50 barrel blanks in one pass.
The Vallon degausser works by passing the barrel steel through a coil. Vallon explains: “The density of magnetic field lines is at its maximum in the coil centre, and is strongly decreasing towards the outside. If a ferromagnetic work piece (steel) is introduced into the coil, the field lines are concentrating and flooding the work piece. The conductivity of steel is up to 800 times higher than that of air. Degaussing is done during a continuous movement of the work piece, leading out of the coil. Decreasing field strength is achieved by a slow extraction from the coil.”
How Degaussing Improves Barrel Steel and Rifle Performance
So what does magnetism have to do with barrel performance? How can degaussing help make a barrel better? Vallon’s scientists tell us that degaussing has three major benefits. First, it aligns ferrous elements within the barrels, strengthening the steel at the molecular level from the inside out. Second, by reducing static surface charges, degaussing reduces chatter during drilling, which creates a straighter bore with a better surface finish. Lastly, there is evidence that degaussed barrels produce slightly more velocity. When a copper-clad bullet spins through a non-degaussed (magnetically-charged) barrel, this creates waste electrical energy. The energy expended reduces velocity very slightly. You can see this effect yourself if you spin a copper rod in the middle of a donut-shaped magnet. This creates an electrical charge.
Here a barrel is checked after degaussing with a Vallon EMS. The meter records a zero magnetic value, showing complete degaussing success.
Degaussing Will Add $50.00 to Barrel Cost
We know what you’re thinking: “All right, degaussing seems beneficial, but how much will this add to the cost of my new barrel?” Based on off-the-record conversations with two barrel-makers, we estimate that degaussing will add less than $50.00 to the cost of a new barrel blank. That’s a small price to pay for greater accuracy and barrel life.
Ask a Sailor — F-Class Champion and U.S. Navy Veteran Explains Degaussing
We asked reigning F-TR Champion James Crofts about barrel degaussing. A U.S. Navy veteran, he immediately understood the potential benefits of this process. “I served in nuclear submarines. Since before World War II, the U.S. Navy degaussed its subs and smaller warships. This had many benefits. Principally, it helped reduce the risk of triggering magnetic mines. But that wasn’t the only benefit — the degaussing process gave the steel greater resilience and longevity. And that’s why the Navy degaussed non-combat vessels as well. Will a degaussed barrel shoot better? Honestly I can’t say. But based on my Navy experience, I bet degaussed steel will be more uniform and will last longer. I’m glad somebody is trying this out on rifle barrels. Put me on the waiting list!”
The above photo show a U.S. nuclear submarine during a degaussing (also called “deperming”) session. This reduces the vessel’s electromagnetic signature, making it more stealthy. Deperming also adds to the vessel’s longevity. With steel-hulled ships, static electricity builds up as the hull slices through the water. A powerful, constant static charge will cause the steel to deteriorate. Degaussing (deperming) helps prevent this, extending the life of the hull.
“Forever”. That’s a serious concept. In a world where many products are guaranteed for just 30 days (or not at all), the Brownells “forever” 100% satisfaction guarantee is pretty darn impressive. In this video, Pete Brownell, company CEO, explains how the Brownells guarantee works. If any product Brownells sells ever proves unsatisfactory, at any time, Brownells will replace it or refund your money. That applies to both Brownells-branded products as well as third-party manufactured items sold by Brownells. Think about that the next time you buy a trigger or scope rail or other firearm accessory.
“One thing about Brownells that sets it apart from any other organization inside or outside the firearms industry is our return policy. Here’s how it is… it’s guaranteed forever. What this means is, if you buy [a product] from Brownells… whatever it is, it’s guaranteed forever. Not just lifetime, but forever.” — Pete Brownell, CEO
100% Satisfaction Guarantee on Everything We Sell
If you aren’t completely, 100% satisfied with any purchase you receive from Brownells, for any reason, at any time, return it for a full refund or exchange. No hassle, no problem. And, we won’t bog you down in endless paperwork. [This statement appears on Brownells.com].
The NRA Gunsmithing Guide contains 336 pages of solid, comprehensive gunsmithing info drawn from articles originally published in the American Rifleman magazine.
The $24.95 book includes 116 articles by expert smiths who build, repair, accurize, and customize all types of firearms (with a strong emphasis on rifles). The three main subject areas are: improving rifle accuracy, customizing fine rifles, and restoring old rifles. Roughly one-third of the articles cover these three topics.
As you would expect from content that first ran in American Rifleman magazine, the articles in the NRA Gunsmithing Guide are richly illustrated with photographs, charts, drawings, diagrams, and data tables. Not Available in bookstores, the NRA Gunsmithing Guide is sold online through Palladium Press, the NRA’s Book Publishing Affiliate.
Ernie Paull from California was an active competition shooter for many years. However, his eyesight has declined so he has turned his attention to providing components for shooters and gunsmiths. Through his Ernie the Gunsmith website, Paull sells a variety of useful products including gun trigger springs, pillar-bedding kits, Accu-Risers, and pillar installation tools. This Bulletin post focuses on Ernie’s trigger springs. Ernie offers springs for a wide variety of rifles: Browning (A-Bolt, A-Bolt 22), CZ (m452), Kimber, Remington (XR100, XCR, 7, 700, 722, 788, 7600 and more), Ruger (77, 77-22, LC6), Tikka (T-3), Weatherby (MK-V), and Winchester (M-70).
Springs start at just $6.95. Ernie also sells springs for the Rem-compatible Shilen Benchrest trigger, as well as Rem 700 ejector springs and trigger alignment springs. For Rem 700 rifles, Paull makes a spring that fits all Remington M-7 and M-700 triggers including the 2007-vintage X Mark-PRO trigger (but not the newer X Mark-PRO trigger introduced in 2009). Ernie says: “on average, installation of his Model-700 spring will reduce factory triggers’ weight of pull by 1½ to 2½ lbs with no other changes. The exact amount of creep, over-travel, and weight of pull are dependent upon the type and amount of tuning accomplished by your gunsmith.”
We often hear requests from Tikka T-3 owners asking how they can reduce their trigger pull weight. Paull offers a Tikka T-3 varmint trigger spring which can reduce the pull weight significantly. The photo at left shows the Tikka T-3 trigger assembly.
While there is more to a good trigger job (in most cases) than just a spring swap, you need to have the proper rate spring when adjusting trigger pull weight downwards. NOTE: For safety reasons, we recommend you consult a competent gunsmith before modifying factory triggers. We stress the word competent…
Ernie has observed that some gunsmiths try to lighten trigger pulls by modifying factory springs in questionable ways: “I have worked with gunsmiths in the past who, when the subject turned to trigger springs, preferred to clip them, grind them, heat them, bend them, smash them, or simply back out the weight of pull screw until there was no or almost no pressure on the spring. With any of these methods, you get a spring whose rate is rapidly rising as the trigger is pulled. As the trigger is released, the spring rate rapidly decreases as it approaches full or near-full extension. A more uniform weight of pull will be achieved when the trigger spring is compressed within its normal working range throughout the entire movement of the trigger. In the long run, the benefits of saved time, plus more uniform and reliable results, will more than offset the cost of these [replacement] springs. If you want a lighter trigger pull, you need a lighter trigger spring.”
Next time you have a barrel fitted, consider having your gunsmith create a “stub gauge” from a left-over piece of barrel steel (ideally taken from your new barrel blank). The outside diameter isn’t important — the key thing is that the stub gauge is created with the same reamer used to chamber your current barrel, and the stub must have the same bore diameter, with the same land/groove configuration, as the barrel on your rifle. When properly made, a stub gauge gives you an accurate three-dimensional model of the upper section of your chamber and throat. This comes in handy when you need to bump your case shoulders. Just slide a fired case (with spent primer removed) in the stub gauge and measure from base of case to the end of the gauge. Then, after bumping, re-measure to confirm how much you’ve moved the shoulder.
In addition, the stub gauge lets you measure the original length to lands and freebore when your barrel was new. This gives you a baseline to accurately assess how far your throat erodes with use. Of course, as the throat wears, to get true length-to-lands dimension, you need take your measurement using your actual barrel. The barrel stub gauge helps you set the initial bullet seating depth. Seating depth is then adjusted accordingly, based on observed throat erosion, or your preferred seating depth.
Forum member RussT explains: “My gunsmith [makes a stub gauge] for me on every barrel now. I order a barrel an inch longer and that gives him enough material when he cuts off the end to give me a nice case gauge. Though I don’t have him cut that nice-looking window in the side (as shown in photos). That’s a neat option. You can tell how much throat erosion you are getting from when it was new as well. For measuring initial seating depths, this is the most useful item on my loading bench next to calipers. Everyone should have a case gauge made by there smith if you have a new barrel put on.”
Forum member Lawrence H. has stub gauges made with his chamber reamers for each new barrel. He has his smith cut a port in the stub steel so Lawrence can actually see how the bullet engages the rifling in a newly-cut chamber. With this “view port”, one can also see how the case-neck fits in the chamber. Lawrence tells us: “My stub gauges are made from my barrels and cut with my chamber reamers. With them I can measure where my bullets are ‘touching the lands’ and shoulder bump dimensions. This is a very simple tool that provides accurate information.” To learn more about stub gauges, read this Forum Thread. The photos above and below show Lawrence’s stub gauges:
Remington is voluntarily recalling Remington Model 887 shotguns manufactured from December 1, 2013 to November 24, 2014. Remington has determined that some Remington Model 887 shotguns manufactured between December 19, 2013 and November 24, 2014 may exhibit a defect causing the firing pin to bind in the forward position within the bolt, which can result in an unintentional discharge when chambering a live round. Therefore, Remington is recalling ALL potentially affected products to fully inspect and repair. Remington has advised customers to immediately cease use of recalled shotguns and return them to Remington free of charge. The shotguns will be inspected, repaired, tested, and returned as soon as possible.
RECALLED: Remington Model 887 shotguns made from Dec. 1, 2013 to Nov. 24, 2014.
Owners of the recalled shotguns should not attempt to diagnose or repair the shotguns themselves. Remington has established a dedicated website and toll-free hotline to help Model 886 owners consumers determine whether their shotguns are subject to recall. Visit 887recall.remington.com or call 1-800-243-9700.
REMEDY/ACTION TO BE TAKEN: STOP USING YOUR SHOTGUN.
Any unintended discharge has the potential to cause injury or death. Immediately cease use of recalled shotguns and return them to Remington free of charge. Shotguns will be inspected, repaired, tested, and returned as soon as possible, at no cost to you. DO NOT attempt to diagnose or repair recalled shotguns yourself. For your safety, STOP USING YOUR SHOTGUN and immediately contact Remington.
Ask a Sailor — F-Class Champion and
Ernie Paull from California was an active competition shooter for many years. However, his eyesight has declined so he has turned his attention to providing components for shooters and gunsmiths. Through his 
We often hear requests from Tikka T-3 owners asking how they can reduce their trigger pull weight. Paull offers a Tikka T-3 varmint trigger spring which can reduce the pull weight significantly. The photo at left shows the Tikka T-3 trigger assembly.
