RML 11-inch 25-ton gun
| Ordnance RML 11-inch 25-ton gun | |
|---|---|
Disappearing gun on HMS Temeraire in firing position | |
| Type | Naval gun Coast defence gun |
| Service history | |
| In service | 1867–1903 |
| Used by | Royal Navy |
| Wars | Bombardment of Alexandria |
| Production history | |
| Manufacturer | Royal Arsenal |
| Unit cost | £1,589 (18751) |
| Variants | Mk I, Mk II |
| Specifications | |
| Mass | 25 long tons (25,000 kg) |
| Barrel length | 145 inches (3.7 m) (bore + chamber) |
| Shell | 532 to 543 pounds (241.3 to 246.3 kg) Palliser, Common, Shrapnel |
| Calibre | 11-inch (279.4 mm) |
| Muzzle velocity | 1,360 feet per second (410 m/s) |
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RML 11-inch 25-ton guns were large rifled muzzle-loading guns used as primary armament on British battleships and for coastal defence. They were effectively the same gun as the RML 12-inch 25-ton gun, bored to 11 inches instead of 12.