RML 64-pounder 58 cwt
| Ordnance RML 64 pounder 58 cwt gun (converted) | |
|---|---|
| 64 Pounder (58 cwt) RML gun barrel, diagram from handbook | |
| Type | Coast defence gun | 
| Place of origin | United Kingdom | 
| Service history | |
| In service | 1870–1902 | 
| Used by | British Army British Colonies | 
| Production history | |
| Designer | Lt Col William Dundas | 
| Designed | 1847 | 
| Manufacturer | Royal Gun Factory | 
| Variants | One mark only | 
| Specifications | |
| Mass | 6,496 pounds (2,947 kg) | 
| Barrel length | 103.27 inches (2.623 m) (bore) | 
| Shell | 64 pounds (29.03 kg) | 
| Calibre | 6.3-inch (160.0 mm) | 
| Carriage | Garrison carriage | 
| Muzzle velocity | 1,230 feet per second (370 m/s) | 
| Sights | Centre sighted | 
The RML 64-pounder 58 cwt guns (converted) were British rifled muzzle-loading guns converted from obsolete smoothbore 32-pounder 58 cwt guns.