25 mm automatic air defense gun M1940 (72-K)

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
Specifications
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 firing 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 under the guidance of its Chief Designer Mikhail Loginov.