| 254 mm 45 caliber Pattern 1891 | |
|---|---|
 A twin gun turret aboard the battleship Rostislav. | |
| Type | Naval gun Coastal artillery |
| Place of origin | Russian Empire |
| Service history | |
| In service | 1897-1930 |
| Used by | Russian Empire Soviet Union Empire of Japan |
| Wars | Russo-Japanese War World War I |
| Production history | |
| Designed | 1892 |
| Manufacturer | Obukhov State Plant |
| Produced | 1897 |
| Specifications | |
| Mass | 24–27.6 t (26.5–30.4 short tons) |
| Length | 11.4 m (37 ft 5 in) |
| Barrel length | 11 m (36 ft 1 in) |
| Shell | Separate loading bagged charge and projectile |
| Shell weight | 225 kg (496 lb) |
| Caliber | 254 mm (10.0 in) 45 caliber |
| Traverse | -135° to +135° |
| Muzzle velocity | 692 m/s (2,270 ft/s) |
| Maximum firing range | 20.4 km (12.7 mi) at +30°[1] |
The 254 mm 45 caliber Pattern 1891 was a Russian naval gun developed in the years before the Russo-Japanese War that armed coastal defense ships and pre-dreadnought battleships during the Russo-Japanese War and World War I. Guns salvaged from scrapped ships found a second life as coastal artillery. It is believed none were in service during World War II.[2]
- ^ Cite error: The named reference
:1was invoked but never defined (see the help page). - ^ DiGiulian, Tony. "Russia / USSR 10"/45 (25.4 cm) Pattern 1891 - NavWeaps". www.navweaps.com. Retrieved 2017-04-11.