8mm STEYR
The 8mm Roth-Steyr (aka 8mm Steyr) was adopted by the Austro-Hungarian Empire in 1907, thus making its Repetierpistole M7 the first semi-automatic pistol used by a major military. If you don’t feel like looking for century-old Austrian military surplus for your M7, then you are in luck! Fiocchi still loads the ammo with 113 grain full metal jacket (FMJ) projectiles.