76 mm regimental gun M1943
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
- Ammunition types:
- 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.
Users
Soviet Union
Poland: used by Polish People's Army[2]

Notes
- ^ a b c Chamberlain, Peter (1975). Infantry, mountain, and airborne guns. Gander, Terry. New York: Arco. p. 63. ISBN 0668038195. OCLC 2067391.
- ^ "Powrót armaty pułkowej wz. 43 kal. 76,2 po renowacji". www.muzeum.kolobrzeg.pl. Retrieved 2025-02-16.
References
- 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