When early Lugers had been chambered in seven.65x21mm, a .30 caliber rimless bottleneck cartridge also invented by Herr Luger, military customers had been hungry for the round using a bit more umpf. This led to a fatter, 9mm bullet with a shorter, 19mm very long case that concurrently labored superior while in the Luger pistol.9mm pistols, just lik