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Recently, Sporting Arms and Ammunition Manufacturers’ Institute (SAAMI) announced the approval of several new rifle cartridges, including Hornady’s new 6mm GT. The purpose of SAAMI is to provide standards that ensure safety, performance, reliability, and interchangeability of firearms, ammunition, and components within the firearms market.

Below, is the press release from SAAMI on the acceptance of the new cartridges.

Press Release

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.

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

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

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

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