| 6 inch 35 caliber naval gun 1877 | |
|---|---|
 Russian 6 inch 35 caliber naval gun in Suomenlinna | |
| Type | Naval and coastal gun |
| Place of origin | Russian Empire |
| Service history | |
| In service | 1885–1917 Russian Empire 1917–1944 Finland |
| Used by | Russian Empire Finland |
| Wars | Russo-Japanese War First World War Second World War |
| Production history | |
| Designer | A. F. Brink |
| Designed | 1882[1] |
| Manufacturer | Obukhov State Plant |
| Variants | Hoop gun 1885 Wire-wound barrel 1887 New wire-wound barrel 1892 |
| Specifications | |
| Mass | 8,500 kg (18,700 lb)[1] |
| Barrel length | 5,349 mm (17 ft 7 in)[1] |
| Caliber | 152.4 mm (6 in)[1] |
| Breech | Interrupted screw |
| Carriage | Vavasseur mount Dubrov mount Krel casemate mount[1] |
| Elevation | Vavasseur mount: -7° to +20° Dubrov mount: -5° to +15° Krel mount: -4° to +12°[1] |
| Traverse | Vavasseur mount: 360°[1] |
| Rate of fire | Theoretical: 4-5 rpm Practical: 1 rpm[1] |
| Muzzle velocity | 600–700 m/s (2,000–2,300 ft/s) depending on ammunition [1] |
| Maximum firing range | 15,000 m (16,000 yd)[1] |
The 6 inch 35 caliber naval gun 1877 was a 152 mm naval gun used by the Russian Empire. The gun was used from 1887 as battleship secondary armament and cruiser armament. The gun was mostly replaced by newer 6 inch 45 caliber Canet gun 1892 at the time of the Russo-Japanese War, but was still used on some ships. During the First World War fourteen guns were used as coastal guns on Gulf of Finland in the Peter the Great's Naval Fortress and were taken over by Finland after Finland's Declaration of Independence in 1917. The guns were used by Finland in the Second World War.[1][2] Russian model year 1877 refers to rifling system, not gun adoption[citation needed].