RML 2.5-inch mountain gun
| Ordnance RML 2.5-inch mountain gun | |
|---|---|
| Sikh gunners assembling the gun, circa. 1895 | |
| Type | Mountain gun | 
| Place of origin | United Kingdom | 
| Service history | |
| In service | 1879–1918 | 
| Used by | British Empire British Raj Romania | 
| Wars | Second Boer War World War I | 
| Production history | |
| Designer | Colonel le Mesurier, RA | 
| Designed | 1877 | 
| Manufacturer | Royal Gun Factory | 
| Specifications | |
| Mass | 800 pounds (363 kg) total | 
| Length | 69 inches (1,750 mm) | 
| Barrel length | 66 inches (1,680 mm) | 
| Shell | 7 pounds 6 ounces (3.35 kg) (Shrapnel) 8 pounds 2 ounces (3.69 kg) (Ring) | 
| Calibre | 2.5 inches (63.5 mm) | 
| Action | RML | 
| Muzzle velocity | 1,436 feet per second (438 m/s) | 
| Maximum firing range | 3,300 yards (3,018 m) (shrapnel) 4,000 yards (3,658 m) (ring) | 
The Ordnance RML 2.5-inch mountain gun was a British rifled muzzle-loading mountain gun of the late 19th century designed to be broken down into four loads for carrying by man or mule. It was primarily used by the Indian Army.