10mm Ammo

The 10mm Auto is one of the more powerful semi-automatic handgun cartridges available, rivaling some magnum revolver calibers in its ballistic potential. Introduced in 1983 as the .40 Super, it has been used for everything from deer hunting to FBI hostage rescues. Although the 10mm Auto is the parent cartridge of the .40 S&W, it has a longer case and the two rounds are not interchangeable.

Ammunition in this caliber varies substantially in power level, with lighter 10mm Auto target loads being comparable in handling to .40 S&W loads. More powerful hunting and defensive ammunition fires relatively heavy bullets in the 180 grain range at a high muzzle velocity of over 1,000 feet per second. This results in very strong expansion and penetration, though at the cost of considerable recoil.

The Glock 20, Bren Ten, and Colt Delta Elite (a 1911 variant) are some notable pistols chambered in 10mm Automatic; in 2015, SIG began offering the P220 in this caliber as well.

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