2A28 Grom

2A28 Grom
Detailed view of a BMP-1 turret showing the 73 mm gun tube of the 2A28
TypeSmoothbore low-pressure cannon
Place of originSoviet Union
Service history
Used bySee BMP-1 Service History
WarsSee list of conflicts
Production history
DesignerKBP
DesignedEarly 1960s
ManufacturerKBP
Produced1966–present
Specifications
Mass115 kg
Length1195 mm
Width218 mm
Height322 mm

ShellPG-15V (HEAT), OG-15V (HE-FRAG), PG-15VN (HEAT-DP)[citation needed]
Caliber73 mm
Barrels1
Elevation-4° to +15° (aimed fire), +33° (maximum non-aimed)[citation needed]
Traverse20 °/s horizontal, 6 °/s vertical
Rate of fire8 rounds per minute[citation needed]
Muzzle velocity400 m/s at the muzzle, 665 m/s maximum (PG-15V); 290 m/s at the muzzle (OG-15V)[citation needed]
Maximum firing range1300 m (PG-15V), 4500 m (OG-15V)[citation needed]
Sights1PN22M, 1PN22M2[citation needed]

The 2A28 Grom also known as KBP 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]

  1. ^ 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.
  2. ^ 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.