THE AR-15 DIARIES

Even though early Lugers had been chambered in seven.65x21mm, a .30 caliber rimless bottleneck cartridge also invented by Herr Luger, army customers ended up hungry for any spherical that has a bit extra umpf. This brought about a fatter, 9mm bullet on a shorter, 19mm very long situation that at the same time worked improved while in the Luger pist