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25 mm automatic air defense gun M1940 (72-K)
72-K in Saint Petersburg Artillery Museum.
Type Air defense gun
Place of origin USSR
Production history
Number built 4,860
Weight 1,210 kg (2,670 lb)
Length 5.3 m (17 ft 5 in)
Width 1.7 m (5 ft 7 in)
Height 1.8 m (5 ft 11 in)
Crew 6

Shell 25 x 218 mm SR
Caliber 25 mm (0.98 in)
Elevation -10 to +85 °
Traverse 360°
Rate of fire 240 rpm
Muzzle velocity 910 m/s (3,000 ft/s)
Maximum range 2,400 m (7,900 ft)

25 mm automatic air defense gun M1940 (72-K) (Russian: 25-мм автоматическая зенитная пушка образца 1940 года (72-К)) was a Soviet 25 mm caliber anti-aircraft gun. The gun was created in the beginning of 1940 at 8th Kalinin Artillery Plant in Kaliningrad under the guidance of its Chief Designer Mikhail Loginov.

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