76 mm regimental gun M1943

76 mm regimental gun M1943
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
Specifications
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 firing 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

• 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.

References

Wikimedia Commons has media related to 76.2-mm regimental gun M1943.

• 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

Soviet Artillery of World War II (naming convention)
Anti-tank guns	37 mm anti-tank gun M1930 (1-K) 45 mm anti-tank gun M1937 (53-K) 45 mm anti-tank gun M1942 (M-42) 57 mm anti-tank gun M1943 (ZiS-2) 100 mm field gun M1944 (BS-3) 100mm D-10 tank gun
Mountain guns	76 mm mountain gun M1909 (76-09) 76 mm mountain gun M1938
Regimental guns	76 mm regimental gun M1927 76 mm regimental gun M1943 (OB-25)
Divisional guns	76 mm divisional gun M1902/30 76 mm divisional gun M1936 (F-22) 76 mm divisional gun M1939 (USV) 76 mm divisional gun M1942 (ZiS-3) 85 mm divisional gun D-44 107 mm divisional gun M1940 (M-60) 122 mm howitzer M1909/37 122 mm howitzer M1910/30 122 mm howitzer M1938 (M-30) 152 mm mortar M1931 (NM)
Corps and Army level guns	107 mm gun M1910/30 122 mm gun M1931 (A-19) 122 mm gun M1931/37 (A-19) 152 mm howitzer M1909/30 152 mm howitzer M1910/37 152 mm howitzer M1938 (M-10) 152 mm howitzer M1943 (D-1) 152 mm gun M1910/30 152 mm gun M1910/34 152 mm howitzer-gun M1937 (ML-20)
Very heavy guns	152 mm gun M1935 (Br-2) 203 mm howitzer M1931 (B-4) 210 mm gun M1939 (Br-17) 280 mm howitzer M1914/15 280 mm mortar M1939 (Br-5) 305 mm howitzer M1939 (Br-18)
Air defense guns	25 mm automatic air defense gun M1940 (72-K) 37 mm automatic air defense gun M1939 (61-K) 76 mm air defense gun M1938 85 mm air defense gun M1939 (52-K)