Specifications
| Weight of gun (complete with breech mechanism) | 9,595 lb (4,352 kg) |
| Weight of tube assembly (barrel) | 9,190 lb (4,169 kg) |
| Length of tube | 277.37 in (7.05 m) |
| Length of bore | cal. 45 (274.6 in / 6.975m) |
| Length of rifling | 230.57 in. |
| Powder pressure (normal pressure with maximum charge in a new gun) | 40,000 psi (275,790 kPa) |
| Type of breecblock | Interrupted screw |
| Weight of breech mechanism | 405 lb (184 kg) |
| Type of firing mechanism | continuous pull percussion hammer |
Read more about this topic: 155 Mm Long Tom