Gryazev-Shipunov GSh-301

Gryazev-Shipunov GSh-301 is a 30 mm cannon designed for use on Soviet and later Russian military aircraft, GSh-301 current manufacturer is the Russian company Izhmash JSC. GSh-301 entering service in the early 1980s.

Type : Automatic cannon
Place of origin : Soviet Union
In service : 1980–present
Designer : V. Gryazev, A. Shipunov
Designed : 1977
Manufacturer : KBP Instrument Design Bureau

Gryazev-Shipunov GSh-301 has a rate of fire of 1,800 rounds per minute, customarily limited to 1,500 rounds per minute to reduce barrel wear. Despite that, its barrel life is quite short: 2,000 rounds. When firing a continuous burst of 100–150 rounds, the barrel is put under so much stress that it has to be replaced.

The gun uses an evaporation cooling system to prevent the detonation of a high explosive round inside a heated barrel. This cooling system consists of a cylindrical water tank around the rear end of the barrel.

Gryazev-Shipunov GSh-301 Specifications

Weight : 46 kg
Length : 1978 mm
Barrel length : 1500 mm
Width : 156 mm
Height : 185 mm

Cartridge : 30×165mm
Caliber : 30mm
Barrels : 1
Action : Short recoil operated
Rate of fire : 1500–1800 rounds/min
Muzzle velocity : 860 m/s


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