• SUBSCRIBE
Athlon Outdoors Supersite
Tactical Life Website
Ballistic Website
Personal Defense World Website
Skillsetmag Website
  • Guns
    • Handguns
      • Semi-Automatic Handguns
      • Revolvers
    • AR Pistols
    • AR Rifles
    • Rifles
      • Semi-Automatic Rifles
      • Lever Action
      • Bolt Action
    • Shotguns
    • Airguns
    • Custom Guns
      • Handgun Build
      • Rifle Build
      • Shotgun Build
    • Specialty Guns
  • Parts
    • Handgun Parts
    • Rifle Parts
  • Accessories
    • Optics & Sights
    • Lasers & Lights
    • Suppressors
    • Holsters
    • Slings
    • Shooting Rests
    • Targets
    • Maintenance & Tools
  • Ammo
    • Handgun Ammo
      • 9mm
      • 10mm
    • Rifle Ammo
      • .223
    • Shotgun Ammo
      • 12 Gauge
    • Rimfire Ammo
    • Reloading
  • Gear
    • Apparel
    • Ears & Eyes
      • Ears
      • Eyes
        • Thermal Vision
        • Night Vision
    • Storage
    • Tactical Gear
      • Body Armor
    • Knives
      • Fixed Blade
      • Folding Knives
      • Tactical Knives
    • Less Lethal
    • Flashlights
    • Electronics
  • Lifestyle
    • Concealed Carry
    • Personal Defense
      • Self-Defense
      • Hand to Hand Combat
    • Home Defense
    • Sport Shooting
      • Hunting
      • Competition Shooting
    • Precision Shooting/Long Range Shooting
    • Training
      • Shooting 101
    • Survival
      • First Aid
    • Tactical & LE
    • Pop Culture
      • People
      • Rides
      • History
      • Military Lifestyle
  • News
    • New Products & Industry News
    • Gun Facts & Laws
    • Police News
    • Military News
    • Politics
  • VIDEOS
No Result
View All Result
Athlon Outdoors
  • Guns
    • Handguns
      • Semi-Automatic Handguns
      • Revolvers
    • AR Pistols
    • AR Rifles
    • Rifles
      • Semi-Automatic Rifles
      • Lever Action
      • Bolt Action
    • Shotguns
    • Airguns
    • Custom Guns
      • Handgun Build
      • Rifle Build
      • Shotgun Build
    • Specialty Guns
  • Parts
    • Handgun Parts
    • Rifle Parts
  • Accessories
    • Optics & Sights
    • Lasers & Lights
    • Suppressors
    • Holsters
    • Slings
    • Shooting Rests
    • Targets
    • Maintenance & Tools
  • Ammo
    • Handgun Ammo
      • 9mm
      • 10mm
    • Rifle Ammo
      • .223
    • Shotgun Ammo
      • 12 Gauge
    • Rimfire Ammo
    • Reloading
  • Gear
    • Apparel
    • Ears & Eyes
      • Ears
      • Eyes
        • Thermal Vision
        • Night Vision
    • Storage
    • Tactical Gear
      • Body Armor
    • Knives
      • Fixed Blade
      • Folding Knives
      • Tactical Knives
    • Less Lethal
    • Flashlights
    • Electronics
  • Lifestyle
    • Concealed Carry
    • Personal Defense
      • Self-Defense
      • Hand to Hand Combat
    • Home Defense
    • Sport Shooting
      • Hunting
      • Competition Shooting
    • Precision Shooting/Long Range Shooting
    • Training
      • Shooting 101
    • Survival
      • First Aid
    • Tactical & LE
    • Pop Culture
      • People
      • Rides
      • History
      • Military Lifestyle
  • News
    • New Products & Industry News
    • Gun Facts & Laws
    • Police News
    • Military News
    • Politics
  • VIDEOS
No Result
View All Result
Athlon Outdoors Super Site
No Result
View All Result
  • TL
  • PDW
  • BM
  • Skillset
 
ENTER TO WIN: FREE GUN FRIDAY ft. Browning, Caldwell & Black Hills!

UPGRADE: Multi-Caliber Rifle Chassis

ShareTweetPin

Vin Battaglia, principal of BML Tool, demonstrates the Multi-Caliber Rifle Chassis. Note the built-in muzzle brake that is compatible with Gemtech suppressors.

Robert A. SadowskibyRobert A. Sadowski
June 27, 2013
Share on FacebookShare on Twitter

Starting out as a shop in a two-car garage in 1968, BML Tool & Manufacturing is now, over 55 years later, operating out of a 38,000-square-foot facility nestled in the hills of western Connecticut. BML’s roots in tool and die making are deep.

Throughout the facility, you’ll hear tool bits buzz in a wet slurry of cutting fluid as CNC machines reveal familiar shapes from aluminum forgings. Metal stamping machines the size of small buildings pound steel into magazine components.

BML is a precision metal craft vendor that makes critical parts for the military and commercial markets. It is also into small-weapons research and development with an eye on a modular weapon system. Parts manufactured by BML are used in aircraft, medical devices and small arms.

Accurate-Mag
If you are a shooter of ARs and precision tactical rifles, you may have used a weapon with a component manufactured by BML. To say that magazines made by Accurate-Mag, a BML company, are the Cadillacs of rifle magazines is an understatement. Accurate-Mags are single-stack, metal, centerfire-rifle magazines that meet all mil-spec and NATO Stanag requirements. These magazines fit all M24- and M40-type service rifles as well as Mk 13 and NATO variants.

OEM rifle manufacturers like Colt, Savage, Ruger, McMillan, Remington and others use Accurate-Mags. (Look for the Accurate-Mag cartouche on the magazines for Ruger’s Gunsite Scout rifle.) BML’s Accurate-Mag is also the proprietary manufacturer of magazines for the U.S. military’s XM2010 sniper rifle system.

The magazines are built from steel, heat-treated and coated with Teflon. On long-action box magazines, the feed-lip configuration allows the bolt to chamber the round closer to the centerline of the chamber. The feed lips also have a spring action that helps to spit the cartridge out from the magazine and into the chamber as the bolt is pushed forward into battery. This pantented system results in the fastest round-release time for a center-feed cartridge delivery system.

Accurate-Mag also manufactures bottom metal kits for short and long actions. The kits include a magazine and of 6061-T6 aluminum bottom metal that fit OEM rifles manufactured by Remington, Savage, and among others. These kits allow an internal magazine to be replaced with a high-capacity, detachable box magazine.

Multi-Caliber Chassis
Taking shape in Accurate-Mag’s CNC machines is the Multi-Caliber Rifle Chassis System, which was developed based on military requirements. The center section of this three-piece chassis system is built in short- and long-action configurations. The other two components of the chassis system are the buttstock and forend.

Since 1988 the U.S. military has fielded the M24 Sniper Weapon System, a version of the Remington Model 700 action chambered in 7.62x51mm NATO and mated to a McMillan A5 stock topped with a 10x42mm, fixed-power Leupold Ultra M3A optic. This is an excellent weapon, but as it has been fielded with more frequency, it has shown some limitations.

Military specs calls for the barrel to maintain 0.35-MOA accuracy for up to 10,000 rounds. Between training and in-field use, there are times when the rifle needs to be repaired, which requires the weapon to be pulled out of service and shipped to an armorer. But modular chassis systems can keep a weapon in the field indefinitely because they can be maintained in the field by the shooter. In September 2010, the U.S. Army awarded Remington a contract for the M24E1 Enhanced Sniper Rifle, which has since been renamed the XM2010.

The XM2010 differs from the M24 in a number of ways: The XM2010 is chambered for .300 Win Mag and has a detachable five-round magazine, a fully adjustable chassis to fit any user, a suppressor and a muzzle brake. But as much as the XM2010 has helped advance the sniper rifle, it still needs to be maintained by an armorer.

Accurate-Mag’s Multi-Caliber Rifle Chassis is designed for the next evolution of the XM2010. The system can be maintained by the shooter in the field with a minimum of downtime. The innovative inserts attach to a barreled action, like a Savage or Remington bolt action, allowing the user to change out a barreled action in mere minutes. Accurate-Mag refers to the resulting weapon as an “insert rifle.”

Insert rifles employ a dedicated action-block that is bolted to the action receiver and barrel. These action blocks are designed to fit like a glove on either a Savage, Remington or M14 action. Other action blocks for the .50 BMG, non-lethal weapons and high-tech weapons like user-guided grenades are in development. Each action block is unique to a manufacturer’s barreled action. What all action blocks share in common are trunnion tracks on the left and right side of the action block. These trunnion tracks mate to the trunnion pins in the chassis.

Vetting The System
On a cold day in January I traveled to an old, private club in Chappaqua, New York, to put the Multi-Caliber Rifle Chassis through its paces. Accurate-Mag 10-round magazines were loaded with .308, 175-grain Black Hills Match HPs with a factory velocity of 2,600 fps. The chassis held a Savage M10 action with an experimental 17.75-inch barrel.

The stock was completely ambidextrous with a length of pull that was adjustable from 13.5 to 15 inches. The cheekpiece had a 2-inch adjustment range and the buttstock can also be folded. (Some models can fold to the left side of the chassis or, in this case, to the right side, which secures the bolt handle.)

At a bench and using a Harris bipod, I centered the reticle of the 6.5-20x50mm Leupold Mark 4 ER/T dead on the target at 200 yards. Savage AccuTriggers are sweet, and I hit black with the first round. I did not zero the scope, nor was I able to test for muzzle velocity or accuracy, but the subsequent nine rounds clustered between 5 and 6 o’clock. Some bullets shared the hole of a previous bullet.

Then I tried a magazine in another .308 barreled action tuned by RW Snyder Gunsmithing. It was based on the Remington design, and again, 10 rounds, 10 holes. As before, I hadn’t adjusted the Leupold to my dope but kept shooting to a spot. This time I saw hits at 1 o’clock.

Even though it was cold enough to hear pond water freeze, I was pleased. I liked the V-shaped notch in the stock. With my non-shooting hand I was able to push the stock, using the V-shaped notch, into my shoulder while pushing forward on the pistol grip with my shooting hand to lock the rifle in place. I varied the pressure, and the groups on the target show that, but I’m sure with another box of ammo I could find the right balance. I ran an additional magazine through each action again and consistently hit a metal plate at 200 yards even though the tip of my nose was numb. Bang a gong—get it on.

Vin Battaglia, the principal and vice president of operations at BML, demonstrated how easily it is to swap out the barreled actions of the Multi-Caliber Rifle Chassis System. Vin pulled the bolt from the action and removed the scope. He then pressed the detent pin in the chassis with a bullet tip, pulled back on the pistol grip and removed the upper forend rail. Placing the rifle on its butt and pointing the muzzle skyward, he unscrewed the hand screw with a wrench, pivoted the Savage barreled action on the trunnion pins and pulled the action out of the chassis. He replaced it with a Savage M110 in .338 Norma Mag in the same chassis and reassembled the components, also adding a Gemtech suppressor. (It takes more time to describe how to swap barreled actions than it takes to actually do it.)

The .338 Norma’s ballistics are mighty different from those of the .308: The .338 Norma pushes a Sierra 300-grain BTHP with a muzzle velocity of 2,660 fps. I aimed for a spot, and Vin called the shot while looking through a Kowa spotting scope. I adjusted my aim, and the .338 Norma made the steel sing.

Back at the BML facility, Vin again swapped the action out of the chassis with an M14 barreled action. Within minutes, the rifle that was set up for long-range precision use now had an M14 insert setup for suppression fire. There is no need to check headspace or to make any mechanical checks to get the rifle on line. This does mean shooters will need an entire barreled action with an insert block at their disposal. But considering the amount of time a more traditional tactical weapon can be out of service (weeks or months) while it is being re-barreled by an armorer, the Accurate-Mag system’s ability to enable shooters to be back on line in minutes is a real boon. And when a shooters know the zero for their optic for different rounds, there will be no need to sight in the weapon again.

The Colt Competition M2012 rifle and Accurate-Mag’s’s new Special Service rifle employ Accurate-Mag’s high-tech Rifle Chassis System, which itself will be available to the commercial market in late 2013—the tactical rifle has evolved. For more information, visit accurate-mag.com or call 203-880-9485.

Didn't find what you were looking for?

MOST POPULAR

bond arms, bond arms derringer, bond arms derringers, Bond Arms snake slayer

10 of the Best Backcountry Pocket Pistols for Hunting, Self-Defense

13 Best Snub-Nose Revolvers for Concealed Carry [2023]

13 Best Snub-Nose Revolvers for Concealed Carry [2023]

300 Blackout vs 308, rifles, ammunition

300 Blackout vs 308 Win: Which Round Reigns Supreme in AR-15s?

Taurus Home Defender revolver in .410.

KA-BOOM: Here Comes the Taurus Judge Home Defender!

TRENDING

Galco KingTuk for Springfield XD-S

Galco KingTuk for Springfield XD-S Holster Review

DIY Silicon Carbide Coating Grip Step 5

8 Steps For DIY Silicon Carbide Coating Your Grip

Austin Proulx, wilson combat, bill wilson, Austin Proulx pro shooter, Austin Proulx idpa, idpa

Austin Proulx Interviews Bill Wilson of Wilson Combat

Daniel Defense SSP review lead

Daniel Defense SSP 5.56mm Rifle | Gun Review

BROWSE BY BRAND

Skillset-Logo_yellow-153x47png
Ballistic_LOGO-217x47
CH-Logo_blue-153x47
T-L-SS-stack life-47x140
PDW_CCH_LOGO-300x101
PDW-2022-Sidebyside-logo 160x30-blk
GOW LOGO x101
AF_LOGO-184x47

SPOTLIGHT

Bradley Cooper as Chris Kyle in American Sniper.

Reel Shooters: The Best Movie Snipers & a Few of the Worst

Fans of action and war movies would be forgiven for thinking that trained snipers carry their rifles disassembled in an...

RELATED POSTS

The Swampfox Warhorse 1-6x FFP LPVO.

The Swampfox Warhorse 1-6x FFP LPVO Riflescope

...

The September/October 2023 Issue of Tactical Life Magazine.

Tactical Life September/October 2023: Tactical Reload

...

The limited edition RISE Armament Topo Watchman rifle.

UPDATED: New RISE Armament Topo Watchman Limited-Edition

...

Load More

TRENDING

MeoTac 3-12x50 RD riflescope

MeoTac 3-12×50 RD: Meopta’s Newest Tactical Riflescope

Meopta's 34mm MeoTac 3-12x50 RD will meet the needs of armed forces, security details and tactical shooters.

Taurus Home Defender revolver in .410.

KA-BOOM: Here Comes the Taurus Judge Home Defender!

The home defense revolver just got swole. The new Taurus Judge Home Defender brings a beefed up new version...

10 .22 Pocket Pistols for Last-Ditch Self-Defense.

Best .22 Pistols for Self-Defense [2023]

When it comes to concealed carry, the clear defensive options are typically .380 ACP, 9mm, .45 ACP, 10mm, etc. However,...

13 Best Snub-Nose Revolvers for Concealed Carry [2023]

13 Best Snub-Nose Revolvers for Concealed Carry [2023]

Compact, ultra-reliable and ever-ready for close-range self-defense!

MOST POPULAR

The Mossberg MC2sc semi-auto pistol.

12 Best Micro-Compact Handguns for Concealed Carry [2022]

A thick veil of fog stood forever in front of me as I cruised down the highway at 6:30 in...

Police Sidearms, police duty pistols, Handguns, America's Largest Police Departments 2018

Police Sidearms: Handguns of America’s 10 Largest Departments

Law enforcement in the United States is in constant evolution and that includes various police sidearms. These days, law enforcement...

U.S. Secret Service adopts Glock G47

FIRST LOOK: Glock Just Very Quietly Unveiled the New Glock 47 Pistol

Tuesday afternoon we broke news that the U.S. Customs and Border Protection selected three Glock 9mm pistols as its new standard...

All the best new handguns seen at SHOT Show 2023.

21 Best New Handguns [2023]

The NSSF SHOT Show is the premier event to get your hands on new gear. It gives us a first...

VIDEO SERIES: AT THE READY | SEASON 2

MORE VIDEOS

The Streamlight SpeedLocker.

The Streamlight SpeedLocker Portable Locking Storage Container

The Swampfox Warhorse 1-6x FFP LPVO.

The Swampfox Warhorse 1-6x FFP LPVO Riflescope

HANDGUNS

The SK Customs Morelos.

SK Customs Morelos 1911 Heralds Generalissimo Jose Morelos

The Tisas Model 1911A1 Aviator

Tisas 1911A1 Aviator: Bringing Back the ‘Feel’ of the Original

The Sig Sauer P226 Zev.

The Sig Sauer P226 Zev Reviewed: Is It the Best P226 Ever?

The Girsan High Power Negotiator.

The Girsan Negotiator Series Gets a High Power Addition in 9mm

Taurus Home Defender revolver in .410.

KA-BOOM: Here Comes the Taurus Judge Home Defender!

holster, holsters, full-size pistol, full-size handgun, handgun, handguns, pistol, pistols

Practical Concealed Carry: How to Carry A Full-Size Pistol

RIFLES - click to see all

The limited edition RISE Armament Topo Watchman rifle.

UPDATED: New RISE Armament Topo Watchman Limited-Edition

The MDC “Trench Art” Classic AK-47 Rifle.

MDC “Trench Art” Classic AK-47 is Back with Limited Availability

Davidson's Ruger American Predator

Ready to Pounce: Ruger American Predator From Davidson’s

The Exclusive HKMR762A1 from Davidson's.

Davidson’s HK MR762A1 in 7.62mm Brings Exclusive Battle Rifle

AMMO - click to see all

Ammo Storage, Survival Ammo, long term ammo storage, Prepper

Best Methods for Long-Term Ammo Storage

6 .410 Ammo Options for Home and Personal Defense.

.410 Ammo for Home Defense [2023]

.44 Magnum dirty harry

Your Guide to the .44 Magnum Cartridge

The Escort PS Youth 20-gauge shotgun.

The Escort PS Youth Shotgun is Now Available in .410 Bore

The 2022 Athlon Outdoors Rendezvous event.

Rendezvous Roundup: Guns & Gear at Athlon’s Signature Event

fbi ammo testing protocol

Understanding FBI Ammo Testing Standards

Magazines Available Now! Subscribe today for Home Delivery!
FREE NEWSLETTERS! Subscribe!
  • PRIVACY POLICY
  • TERMS OF USE
  • CORPORATE
  • ADVERTISE
  • EDIT DESK
No Result
View All Result
  • Guns
    • Handguns
      • Semi-Automatic Handguns
      • Revolvers
    • AR Pistols
    • AR Rifles
    • Rifles
      • Semi-Automatic Rifles
      • Lever Action
      • Bolt Action
    • Shotguns
    • Airguns
    • Custom Guns
      • Handgun Build
      • Rifle Build
      • Shotgun Build
    • Specialty Guns
  • Parts
    • Handgun Parts
    • Rifle Parts
  • Accessories
    • Optics & Sights
    • Lasers & Lights
    • Suppressors
    • Holsters
    • Slings
    • Shooting Rests
    • Targets
    • Maintenance & Tools
  • Ammo
    • Handgun Ammo
      • 9mm
      • 10mm
    • Rifle Ammo
      • .223
    • Shotgun Ammo
      • 12 Gauge
    • Rimfire Ammo
    • Reloading
  • Gear
    • Apparel
    • Ears & Eyes
      • Ears
      • Eyes
    • Storage
    • Tactical Gear
      • Body Armor
    • Knives
      • Fixed Blade
      • Folding Knives
      • Tactical Knives
    • Less Lethal
    • Flashlights
    • Electronics
  • Lifestyle
    • Concealed Carry
    • Personal Defense
      • Self-Defense
      • Hand to Hand Combat
    • Home Defense
    • Sport Shooting
      • Hunting
      • Competition Shooting
    • Precision Shooting/Long Range Shooting
    • Training
      • Shooting 101
    • Survival
      • First Aid
    • Tactical & LE
    • Pop Culture
      • People
      • Rides
      • History
      • Military Lifestyle
  • News
    • New Products & Industry News
    • Gun Facts & Laws
    • Police News
    • Military News
    • Politics
  • VIDEOS

© 2023 Athlon Outdoors - Premium Firearm product and industry news, reviews and magazines" .