BL 6-inch Mk XIII – XVIII naval gun
| BL 6-inch gun | |
|---|---|
| Type | Naval gun |
| Place of origin | United Kingdom |
| Service history | |
| In service | 1914–1958 |
| Wars | World War I World War II |
| Production history | |
| Designer | Mk XIII, XVII, XVIII : EOC Mk XIV, XV, XVI : Vickers |
| Variants | Mk XIII, XIV, XV, XVI, XVII, XVIII |
| Specifications | |
| Barrel length | 300 inches (7.620 m) bore (50 cal) |
| Shell | 100 pounds (45.36 kg) |
| Calibre | 6 inches (152.4 mm) |
| Muzzle velocity | Mk XIII : 2,770 feet per second (840 m/s) Mk XIV & XV : 2,900 feet per second (880 m/s) Mk XVI : 3,000 feet per second (910 m/s) Mk XVII : 2,905 feet per second (885 m/s) Mk XVIII : 2,874 feet per second (876 m/s) |
By taking on ships being built for foreign navies in British shipyards, a number of British-built 6-inch 50-calibre naval guns found their way into British service in World War I. Their specifications and performance differed from standard Royal Navy 6-inch guns but in British service they fired standard service 100-pound projectiles.