Degtyaryov machine gun
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The Degtyaryov machine gun or DP-27/DP-28 is a light machine gun firing the 7.62×54mmR cartridge that was primarily used by the Soviet Union, with service trials starting in 1927, followed by general deployment in 1928. Wikipedia
Designer: Vasily Degtyaryov
Magazine size: 47-round
Action: Gas-operated, flapper locking
Caliber: 7.62 mm
Cartridge: 7.62×54mmR
Effective firing range: 800 m (874.9 yd)
Feed system: 47-round pan