| QF 6-inch Mark N5 gun | |
|---|---|
_(20872081230).jpg) HMS Tiger at sea in 1965, showing the large twin 6 inch gun mounting | |
| Type | Naval gun |
| Place of origin | United Kingdom |
| Service history | |
| In service | 1959–1979 |
| Used by |  Royal Navy |
| Production history | |
| Designed | 1944 (suspended and resumed, 1948) |
| Specifications | |
| Mass | 15,344 lb (6.960 t) |
| Length | 315 in (8.0 m) |
| Barrel length | 300 in (7.62 m) (50 calibres) |
| Shell | AP: 129.75 lb (58.85 kg) HE: 132 lb (60 kg) |
| Calibre | 6-inch (152 mm) |
| Breech | Horizontally sliding breech block (hydraulic operation) |
| Carriage | Modified Mark XXVI (Mark 26) |
| Elevation | -5 to +78.5 degrees |
| Rate of fire | 15 to 20 rounds per minute |
| Muzzle velocity | 2,520 ft/s (770 m/s) |
| Maximum firing range | 25,000 yd (23,000 m) at 45 degrees elevation (firing AP shot) |
The QF 6-inch Gun Mark N5 (initially designated QF 6-inch Mk V) was a British naval gun, which was developed in the post-war period. It was the last large gun to be operational with the Royal Navy.