-4° to +15° (aimed fire), +33° (maximum non-aimed)[citation needed]
Traverse
20 °/s horizontal, 6 °/s vertical
Rate of fire
8 rounds per minute[citation needed]
Muzzle velocity
400 m/s at the muzzle, 665 m/s maximum (PG-15V); 290 m/s at the muzzle (OG-15V)[citation needed]
Maximum firing range
1300 m (PG-15V), 4500 m (OG-15V)[citation needed]
Sights
1PN22M, 1PN22M2[citation needed]
The 2A28 Grom is the main armament of the Soviet-designed BMP-1 and BMD-1 infantry fighting vehicles. It is a 73 mm low pressure smoothbore semi-automatic gun with a wedge breech block.[1] Development of the 2A28 Grom was directly linked to that of the SPG-9 recoilless gun; both fired projectiles similar to rocket-propelled grenades.[2]
^Christopher F. Foss (1976). Jane's World Armoured Fighting Vehicles (1976 ed.). Macdonald and Jane's Publishers Ltd. pp. 260–261. ISBN 0-354-01022-0.
^Institute for Defence Analyses, various (1995). Soviet/Russian Armor and Artillery Design Practices: 1945-1995. Quantico: United States Marine Corps Intelligence Agency. p. 22. OCLC 33890115.
The 2A28Grom is the main armament of the Soviet-designed BMP-1 and BMD-1 infantry fighting vehicles. It is a 73 mm low pressure smoothbore semi-automatic...
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