SAAMI Announces Acceptance of New Rifle Cartridges

NEWTOWN, Conn. — 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 the safety, reliability and interchangeability of firearms, ammunition, and components.

6mm GT – The 6mm GT was introduced by Hornady Manufacturing Co. with a 109-grain bullet traveling at a velocity of 2,910 fps and a Maximum Average Pressure of 62,000 psi.

6.8 True Velocity Composite – The 6.8 TVC was introduced by True Velocity Ammunition, LLC with a 150-grain bullet traveling at velocity of 2,700 fps and a Maximum Average Pressure of 65,000 psi.

338 Weatherby Rebated Precision Magnum – The 338 WBY RPM was introduced by Weatherby, Inc., with a 225-grain bullet traveling at velocity of 2,800 fps and a Maximum Average Pressure of 65,000 psi.

For further information on these new cartridges, please visit the Cartridge & Chamber Drawings section of the SAAMI website.


The Sporting Arms and Ammunition Manufacturers’ Institute, founded in 1926 at the request of the federal government, is dedicated to creating and promulgating technical, performance and safety standards for firearms, ammunition and components, and is committed to being the preeminent global resource for the safe and responsible design, manufacture, transportation, storage and use of these products.


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