How big is a 50 caliber sniper rifle in inches?


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The .50 Browning Machine Gun (.50 BMG) or 12.7x99mm NATO is a cartridge developed for the Browning .50 Caliber machine gun in the late 1910s. .50 BMG rifle is only .50 inch (12.7 mm) across the rifling lands and slightly larger in the grooves.

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