The 5.7x28 mm FN cartridge joins the 7.62 NATO and 5.56 NATO as a standard cartridge among nations of the North Atlantic Treaty Organization.

CMMG has tapped into a cartridge that has long been a niche round for a select few ... Now CMMG proves that it wasn’t finished with the 5.7 mm by rolling out a conversion kit for today’s AR-15 ...

Weatherby, for the first time in decades, is unleashing a new cartridge—and it is a speed-demon of a six-five. Based on a necked-down .300 Weatherby Magnum, the 6.5-300 Weatherby is set to dethrone ...

Modern rifles in .30/06 can be had as light as 5 pounds with 7- to 8-pound models being most common. Recoil of a 150-grain bullet from a 7-pound .30/06 would be ... This civilian version of the ...

PICATINNY ARSENAL, N.J. (June 23, 2010) -- The Army announced today it has begun shipping its new 5.56mm cartridge, the M855A1 Enhanced Performance Round, to support warfighters in Afghanistan.

Each of the cartridges has its objective advantages and drawbacks. For instance, the weight of the 7.62 x 39 mm cartridge is 16.2 grams, while the 5.45 version weighs 10.3 grams.