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The mounting for these guns was to have been controlled by the More-82 control system and to have a Grot radar rangefinder. Two Zalp FC radars were also part of the system The gun was made from the tube, liner, casing and the breech. The breech was piston type, which opened up. |
30.5 cm/62 (12") being assembled
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| Designation | 30.5 cm/62 (12") SM-33 |
| Ship Class Used On | Stalingrad (Pr. 82) class |
| Date Of Design | 1948 |
| Date In Service | N/A |
| Gun Weight | 100 tons (101.58 mt) |
| Gun Length oa | 746.5 in 18.960 m |
| Bore Length | 732.3 in (18.600 m) |
| Rifling Length | 596.9 in (15.160 m) |
| Grooves | 40 |
| Lands | N/A |
| Twist | N/A |
| Chamber Volume | N/A |
| Rate Of Fire | 3.26 rounds per minute (design) |
| Type | Bag |
| Projectile Types and Weights | AP - 1,030 lbs. (467 kg)
SAP - 1,030 lbs. (467 kg) HE - 1,030 lbs. (467 kg) Long Range Shell - 508 lbs. (230.5 kg) |
| Bursting Charge | N/A |
| Projectile Length | N/A |
| Propellant Charge | 508 lbs. (230.5 kg) |
| Muzzle Velocity | AP - 3,117 fps (950 mps)
SAP - 2,953 fps (900 mps) HE - 2,297 fps (700 mps) Long Range Shell - 4,265 fps (1,300 mps) |
| Working Pressure | N/A |
| Approximate Barrel Life | 300 rounds |
| Ammunition stowage per gun | 80 rounds |
| Elevation | With 1,030 lbs. (467 kg) AP Shell |
| Range @ 50 degrees | 58,040 yards (53,070 m) |
| Elevation | With 508 lbs. (230.5 kg) Long Range Shell |
| Range @ 50 degrees | 139,270 yards (127,350 m) |
| Note: I would use these numbers with a great deal of caution as these weapons never saw service. | |
| Range |
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| 10,000 yards (9,140 m) |
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| 20,000 yards (18,290 m) |
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| 30,000 yards (27,430 m) |
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| Note: Data from "Main Caliber of the Battleships." | ||
| Designation | Three-gun Turret
Stalingrad (3): CM-31 |
| Weight | N/A |
| Elevation | -4 / +50 degrees |
| Rate of Elevation | 10 degrees per second |
| Train | N/A |
| Rate of Train | 4.5 degrees per second |
| Gun Recoil | 47 in (120 cm) |
| Loading Angle | N/A |