| 76 mm regimental gun M1943 | |
| Origin: | Soviet Union |
| Type: | Infantry support gun |
| Is Artillery: | yes |
| Service: | 1943–1945 |
| Wars: | World War II |
| Designer: | Motovilikha Plants, M. Yu. Tsiryulnikov |
| Production Date: | 1943–1945 |
| Number: | 5,122 |
| Weight: | combat: 600 kg (1,322 lbs) travel: 1,300 kg (2,866 lbs) |
| Part Length: | 1.25m (04.1feet) L/16.5[1] |
| Cartridge: | 76.2 × 167 mm R |
| Cartridge Weight: | 6.2kg (13.7lb) |
| Caliber: | 76.2 mm (3 in) |
| Rate: | 10 - 12 rpm |
| Velocity: | 262 - 311 m/s (859 - 1,020 ft/s) |
| Max Range: | 4.2 km (2.6 mi) |
| Carriage: | split trail |
| Elevation: | -8° to 25° |
| Traverse: | 60° |
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.
BP-350M.