باكستر محطم 50 × 36
باكستر محطم 50 × 36 .50 BMG - Wikipedia. The .50 BMG (acronym of .50 Browning Machine Gun), also known as 12.7×99mm NATO, and designated as the 50 Browning by the C.I.P., is a .50 in (12.7 mm) caliber cartridge developed for the M2 Browning heavy machine gun in the late 1910s, entering official service in 1921.
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