50 BMG

The .50 BMG or .50 Browning Machine Gun was developed for the M2 Browning heavy machine gun in the late 1910s. The M2 Browning entered service in 1921 alongside the .50 BMG cartridge where it saw use against aircraft, infantry and armor alike. To this day, the primary military use of this round is still the M2 Browning machine gun and anti-materiel rifles such as the Barrett M82.