8x56R MANNLICHER
The 8x56R Mannlicher (aka 8x56mmR, or 8x56mmR M30S) was originally developed for the Austrian military’s Steyr-Solothurn light machine gun. After its military adoption in 1930, it eventually replaced the Steyr-Mannlicher M1895 rifle’s 8x50mmR Mannlicher cartridge. Good luck finding this ammo! Although Prvi Partizan of Serbia occasionally imports it, the only way to fire 8x56R Mannlicher ammo regularly is to load it yourself.