The .50 Browning Machine Gun (.50 BMG) is a cartridge developed for the Browning .50 caliber machine gun in the late 1910s. Entering service officially in 1921, the round is based on a greatly scaled-up .30-06 cartridge. The .50 BMG cartridge is also used in long-range target and sniper rifles, as well as other .50-caliber machine guns. The .50 BMG’s trajectory also suffers less “drift” from cross-winds than smaller and lighter calibers, making the .50 BMG a good choice for high-powered sniper rifles. A skilled sniper can effectively neutralize an infantry unit by eliminating several targets (soldiers or equipment) without revealing his precise location. The long range (1 mile+) between firing position and target allows time for the sniper to avoid enemy retribution by either changing positions repeatedly, or by safely retreating. Firearms chambered for this round include the Browning M2HB heavy machine gun and the Barrett M82.

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