The 10mm Auto cartridge was introduced in 1983 by Norma Precision. It was adopted by the FBI in 1989 for a short period, only to be replaced by the 40 S&W. The typical 10mm Auto Ammo load is a 180-grain bullet at 1300 FPS. Our selection of 10mm Auto Ammo includes target and personal defense rounds. Available in individual boxes or case quantities.