| Cannone da 152/45 | |
|---|---|
|   Cannone da 152/45's on pedestal mounts at the Ansaldo factory.  | |
| Type |  Naval gun  Coastal artillery Siege gun  | 
| Place of origin | Kingdom of Italy | 
| Service history | |
| In service | 1917–1945 | 
| Used by | Kingdom of Italy | 
| Wars |  World War I  World War II  | 
| Production history | |
| Manufacturer | Ansaldo | 
| Specifications | |
| Mass | Naval gun: 7.1 t (7 long tons) Siege gun: 16.67 t (16.41 long tons)  | 
| Barrel length | 7.138 m (23 ft 5 in) L/46.7 | 
| Shell | Separate loading bagged charge and projectile | 
| Shell weight | 47 kg (104 lb) | 
| Caliber | 152.4 mm (6 in) | 
| Breech | Welin breech block | 
| Recoil | Hydro-spring | 
| Carriage | Box trail | 
| Elevation | -5° to +45° | 
| Traverse | Casemate: 60° Siege gun: 10°  | 
| Rate of fire | 1 rpm | 
| Muzzle velocity | 830 m/s (2,700 ft/s) | 
| Maximum firing range | 19.4 km (12 mi) | 
The Cannone da 152/45 modello 1911 was an Italian naval gun built by the Ansaldo company. It formed the secondary armament of the two Andrea Doria-class dreadnought battleships built during World War I. A number of guns were also converted to siege artillery and coastal artillery roles and served during both world wars.