SAAMI Announces Acceptance of New Cartridges

by
posted on February 3, 2025
** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. **
SAAMI Logo LEDE

The Sporting Arms and Ammunition Manufacturers’ Institute, Inc., (SAAMI) has announced the acceptance of three new rifle cartridges for SAAMI standardization. SAAMI is the organization at the forefront of promoting firearm safety by creating standards that ensure safety, reliability and interchangeability of firearms, ammunition and components.

The three new cartridges are listed below. For more information on each cartridge, click on the cartridge name.

Cartridges

7mm Backcountry—The 7mm Backcountry (7mm BC) was introduced by Federal Premium Ammunition (The Kinetic Group), with a 170-grain bullet traveling at a velocity of 3,000 fps and a Maximum Average Pressure of 80,000 psi.

25 Creedmoor—The 25 Creedmoor (25 CM) was introduced by Hornady Manufacturing Company with a 134-grain bullet traveling at a velocity of 2,810 fps and a Maximum Average Pressure of 62,000 psi.

338 Advanced Rifle Cartridge—The 338 Advanced Rifle Cartridge (338 ARC) was introduced by Hornady Manufacturing Company with a 175-grain bullet traveling at a velocity of 2,050 fps and a Maximum Average Pressure of 52,000 psi.

For further information on these new cartridges, visit saami.org/technical-information/cartridge-chamber-drawings/.

Latest

Ledehigh Country Powder
Ledehigh Country Powder

Hodgdon Launches Accurate High Country Powder for 7mm Backcountry

Hodgdon Powder Company have introduced Accurate High Country, an all-new spherical rifle propellant engineered for the performance demands of today's modern magnum cartridges, including Federal's new 7mm Backcountry.

IWC and Guidefitter Honor 2026 Game Warden of the Year

International Wildlife Crimestoppers (IWC), in partnership with Guidefitter, named Senior Conservation Officer Meghan Roos of the Idaho Department of Fish and Game the recipient of the 2026 IWC Guidefitter Game Warden of the Year Award. Officer Roos received the award during International Wildlife Crimestoppers’ annual conference in July.

#SundayGunday: Chiappa USA Rhino 60DS

On this week's #SudnayGunday, we’re checking out the Chiappa Rhino 60 DS. All it takes is once glance to tell this is not your granddad’s revolver. Chiappa has flipped the script on wheelguns quite literally, aligning the barrel with the bottommost chamber of the cylinder, rather than the top. This low bore axis makes the gun recoil directly back into the hand, rather than pulling the muzzle up and away from your grip. Learn more about it in this exclusive video.

Shooting Close: How to Play the Short Game

The trend these days is to “go long” but the truth is, if you’re doing it right, most shots taken by hunters are anything but long range. You’re better off practicing your short game.

Lapua's TRX Now Shipping to U.S. Dealers

Lapua has begun shipping its True-Range Expanding (TRX) ammunition to authorized dealers throughout the United States. Lapua TRX ammunition is built for hunters seeking long-range precision and terminal performance. Featuring a high-BC, polymer-tipped solid-copper bullet, TRX offers accuracy and low wind-drift, with nearly 10-percent weight retention.

Ammunition Depot Offers a Way to Help the NRA

Ammunition Depot, one of the nation’s leading online retailers and suppliers of ammunition, firearms, magazines, accessories and tactical gear, has formed a partnership with the NRA to raise funds to support critical Second Amendment litigation across the country.

Interests



Get the best of American Hunter delivered to your inbox.