NATO adopted the 9x19 Parabellum as their official sidearm in 1955, plus the U.S. armed forces exchanged the .45 ACP for your 9mm as their official cartridge. Yrs later on, shooters are still able to find 9mm ammo for sale in almost every gun store.This was my 1st buy and I'd like to say ordering online was easy, shipping quick and correct and cost