| RML 64-pounder 64 cwt gun | |
|---|---|
 Fortification mounted MK III gun firing at Fort Glanville Conservation Park, South Australia | |
| Type | Naval gun Fortification gun |
| Place of origin | United Kingdom |
| Service history | |
| In service | 1865–190? |
| Used by | British Empire |
| Production history | |
| Designer | Woolwich Arsenal |
| Designed | 1864 |
| Manufacturer | Woolwich Arsenal Elswick Ordnance Company |
| Variants | Mk I, II, III |
| Specifications | |
| Mass | 64-long-hundredweight (3,300 kg) |
| Length | 9.83 in (25.0 cm)[1] |
| Barrel length | 97.5 in (248 cm) bore |
| Shell | 64 pounds (29 kg)[2] |
| Calibre | 6.3 inches (160 mm) |
| Action | RML |
| Breech | Muzzle-loading |
| Muzzle velocity | Wrought-iron tube : 1,252 feet per second (382 m/s) Mk III steel tube : 1,390 feet per second (420 m/s)[3] |
| Effective firing range | 5,000 yards (4,600 m)[2] |
The RML 64-pounder 64 cwt gun is a Rifled, Muzzle Loading (RML) naval, field or fortification artillery gun manufactured in England in the 19th century,[2] which fired a projectile weighing approximately 64 pounds (29 kg). "64 cwt" refers to the gun's weight rounded up to differentiate it from other "64-pounder" guns.
- ^ "The Gun Rifled Ordnance". Archived from the original on 28 February 2009. Retrieved 17 February 2009.
- ^ a b c A Guide to Fort Glanville, South Australia. Semaphore Park, South Australia: The Fort Glanville historical association. 2000.
- ^ 1,252 feet/second firing a 64-pound projectile with 8 lb (3.6 kg) R.L.G. gunpowder is quoted for wrought-iron tubed guns in "Treatise on Construction and Manufacture of Service Ordnance, 1879", page 363. 1,390 ft/s (420 m/s) firing a 65-pound projectile using 10 lb (4.5 kg) R.L.G.4 gunpowder is quoted for Mk III steel tube gun in Table XII in "Text Book of Gunnery 1902".