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76 mm regimental gun M1943
Armata pułkowa wz43 76mm RB.jpg
76 mm regimental gun M1943 in the Poznań citadel, Poland.
Type Infantry support gun
Place of origin Soviet Union
Service history
In service 1943-45
Used by  Soviet Union
Wars World War II
Production history
Designer Motovilikha Plants, M. Yu. Tsiryulnikov
Produced 1943-1945
Number built 5,122
Weight combat: 600 kg (1,322 lbs)
travel: 1,300 kg (2,866 lbs)
Barrel length 1.25 m (4.1 ft) L/16.5

Shell 76.2 × 167 mm. R
Caliber 76.2 mm (3 in)
Carriage split trail
Elevation -8° to 25°
Traverse 60°
Rate of fire 10 - 12 rpm
Muzzle velocity 262 - 311 m/s
(859 - 1,020 ft/s)
Maximum range 4.2 km (2.6 mi)

The 76-mm regimental gun M1943 (OB-25) (Russian: 76-мм полковая пушка обр. 1943 г. (ОБ-25)) was a Soviet infantry support gun developed in 1943 by M. Yu. Tsiryulnikov at the ordnance plant in Motovilikha. The gun used a modernized barrel from the 76 mm regimental gun M1927 and the carriage from the 45 mm anti-tank gun M1942 (M-42). The gun was intended for destruction of light field fortifications and openly placed personnel by direct fire. HEAT shells gave it limited anti-armor capabilities. 76.2-mm regimental guns M1943 completely replaced M1927 guns in production that year and were built until the end of the German-Soviet War. Soon after the end of the war the production ceased due to insufficient range and muzzle velocity.


  • Ammunition types:
    • Fragmentation-HE: OF-350.
    • Fragmentation: O-350A.
    • HEAT: BP-350M.
  • Projectile weight:
    • OF-350: 6.2 kg.
  • Muzzle velocity:
    • OF-350, O-350A: 262 m/s.
    • BP-350M: 311 m/s.
  • Effective range:
    • OF-350, O-350A: 4,200 m.
    • BP-350M: 1,000 m.


  • Chamberlain, Peter & Gander, Terry. Infantry, Mountain and Airborne Guns. New York: Arco, 1975
  • Ivanov A. - Artillery of the USSR in Second World War - SPb Neva, 2003 (Иванов А. Артиллерия СССР во Второй Мировой войне. — СПб., Издательский дом Нева, 2003., ISBN 5-7654-2731-6)
  • Shunkov V. N. - The Weapons of the Red Army, Mn. Harvest, 1999 (Шунков В. Н. - Оружие Красной Армии. — Мн.: Харвест, 1999.) ISBN 985-433-469-4

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