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The .50 Browning Machine Gun (12.7x99mm NATO) or .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 cartridge itself has been made in many variants: multiple generations of regular ball, tracer, armor piercing, incendiary, and saboted sub-caliber rounds.


The .50 BMG cartridge is also used in long-range target and sniper rifles, as well as other .50 caliber machine guns. The use in single-shot and semi-automatic rifles has resulted in many specialized match-grade rounds not used in .50 caliber machine guns.


50 BMG Rifle Accessories





A common method for understanding the actual power of a cartridge is by comparing muzzle energies. The Springfield .30-06 can produce muzzle energies between 2000-3000 foot pounds of energy. A .50 BMG round can produce between 10,000-13,000 foot pounds or more, depending on its powder and bullet type, as well as the rifle it was fired from. Due to the high ballistic coefficient of the bullet, 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.

To find 50 BMG Rifle dealers, 50 BMG accessories and 50 BMG Rifle information, visit 50 Caliber Vault.


50 BMG Data

Type: Rifle Cartridge
Origin: United States

Active: 1914 - Present

Designer: John M Browning

Case Type: Rimless, Bottleneck

Bullet Diameter: .511 in (13mm)

Case Length: 3.91 in (99mm)

Overall Length: 5.45 in (138 mm)

50 bmg rifles, 50 caliber rifles, 50 bmg ammo, 50 bmg ammunition  
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