RML 12.5-inch 38-ton gun
| Ordnance RML 12.5-inch 38-ton gun | |
|---|---|
Gun at Fort Nelson, Portsmouth, UK | |
| Type | Naval gun Coast defence gun |
| Place of origin | United Kingdom |
| Service history | |
| In service | 1875–1905 |
| Used by | Royal Navy |
| Production history | |
| Designer | Royal Gun Factory |
| Designed | 1874 |
| Manufacturer | Royal Arsenal |
| Variants | Mk I, Mk II |
| Specifications | |
| Barrel length | 198 inches (5.0 m) (bore) |
| Shell | 800 to 809 pounds (362.9 to 367.0 kg) Palliser, Common, Shrapnel |
| Calibre | 12.5-inch (317.5 mm) |
| Muzzle velocity | Mk I : 1,425 feet per second (434 m/s) Mk II : 1,575 feet per second (480 m/s) |
| Maximum firing range | Mk I : 6,000 yards (5,500 m) Mk II : 6,500 yards (5,900 m) |
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The RML 12.5-inch guns were large rifled muzzle-loading guns designed for British battleships and were also employed for coast defence.