Obukhovskii 12-inch/52-caliber Pattern 1907 gun
< Obukhovskii 12-inch
| Obukhovskii 12"/52 Pattern 1907 gun | |
|---|---|
"MK-3-12" turrets aboard the Soviet battleship Parizhskaya Kommuna (formerly and later Sevastopol), 1925 | |
| Type | Naval gun Coastal artillery Railway gun |
| Place of origin | Russian Empire |
| Service history | |
| In service | 1914–1999 |
| Used by | Russian Empire Soviet Union Finland Estonia Nazi Germany |
| Wars | World War I Russian Civil War World War II |
| Production history | |
| Designer | Obukhov State Plant |
| Designed | 1907 |
| Manufacturer | Leningradsky Metallichesky Zavod |
| Produced | 1910 |
| No. built | Between 126-144 |
| Specifications | |
| Mass | 51 t (56 short tons) |
| Length | 15.8 m (52 ft) |
| Barrel length | 14.4 m (47 ft) |
| Shell | Average: 444 kg (979 lb) |
| Caliber | 12 inches (305 mm) 52 caliber |
| Breech | Welin breech block |
| Elevation | Original: -5° to +25° |
| Rate of fire | 1-2 rounds per minute |
| Muzzle velocity | Average: 815 m/s (2,670 ft/s) |
| Maximum firing range | Average: 31 km (19 mi) |
The Obukhovskii 12"/52 Pattern 1907 gun was a 12-inch (305 mm), 52-caliber naval gun. It was the most powerful gun to be mounted aboard battleships of the Imperial Russian Navy and later the Soviet Navy during both world wars. It was later modified by the Soviets and employed as coastal artillery and as a railway gun during World War II.