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Infantry support gun From Wikipedia, the free encyclopedia
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.
| 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 | 1943–1945 |
| Used by |  Soviet Union |
| Wars | World War II |
| Production history | |
| Designer | Motovilikha Plants, M. Yu. Tsiryulnikov |
| Produced | 1943–1945 |
| No. built | 5,122 |
| Specifications | |
| Mass | combat: 600 kg (1,322 lbs) travel: 1,300 kg (2,866 lbs) |
| Barrel length | 1.25 m (4.1 ft) L/16.5[1] |
| Shell | 76.2 × 167 mm R |
| Shell weight | 6.2 kg (13 lb 11 oz) |
| Caliber | 76.2 mm (3 in) |
| Carriage | split trail |
| Elevation | -8° to 25° |
| Traverse | 60°[1] |
| 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)[1] |
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