NATO adopted the 9x19 Parabellum as their official sidearm in 1955, plus the U.S. navy exchanged the .45 ACP for that 9mm as their official cartridge. A long time afterwards, shooters remain capable of finding 9mm ammo for sale in nearly every gun store.RLKill mentioned: Good ammo, I shoot Aguila ammo on a regular basis in several guns. .22LR is an