305mm/45
Caliber = 30.5 cm (12.0 inch)
Shell weight = 432 kg (952 lbs)
Muzzle velocity = 778 m/s (2552 fps)
Relative ballistic performance: 1.00
Muzzle energy = 130.7 megajoules = 48168.8 foot-tons
Relative muzzle energy: 0.87
Barrel length: 45 calibers
Elevation Range
Time Velocity Fall Angle
2.5 deg 4800 meters
6.8 sec 661 m/s 2.8 deg
5.0 deg
8800 meters 13.2 sec 582 m/s 6.1 deg
7.5 deg 12100 meters 19.2 sec 527 m/s
9.7 deg
10.0 deg 14900 meters 25.0
sec 487 m/s 13.6 deg
12.5 deg
17400 meters 30.6 sec 458 m/s 17.6 deg
15.0 deg 19600 meters 36.0 sec 438 m/s
21.7 deg
20.0 deg 23400 meters 46.3
sec 417 m/s 29.6 deg
25.0 deg
26400 meters 56.0 sec 411 m/s 36.7 deg
30.0 deg 28900 meters 65.3 sec 414 m/s
42.9 deg
35.0 deg 30700 meters 74.1
sec 423 m/s 48.3 deg
40.0 deg
32000 meters 82.5 sec 435 m/s 53.0 deg
45.0 deg 32500 meters 90.3 sec 448 m/s
57.1 deg
50.0 deg 32300 meters 97.7
sec 461 m/s 60.9 deg
Armor Penetration - Vertical Belt Armor
(Relative armor quality, 1.00)
Maximum penetration: 56.63 cm
Elevation Range
Belt Deck
1.4 deg 2700 meters
50 cm
2.7 deg 5100 meters
45 cm
3.8 deg 6900 meters
... 2 cm
4.3 deg
7800 meters 40 cm
6.5 deg
10800 meters 35 cm
7.1 deg
11600 meters ... 4 cm
9.4 deg 14300 meters 30 cm
11.2 deg 16100 meters ...
6 cm
13.8 deg 18500 meters
25 cm
17.0 deg 21200 meters
... 8 cm
20.8 deg
23900 meters ... 10 cm
20.9 deg 23900 meters 20 cm
24.7 deg 26300 meters ...
12 cm
28.7 deg 28300 meters
... 14 cm
32.8 deg
30000 meters ... 16 cm
33.7 deg 30300 meters 15 cm
37.1 deg 31300 meters ...
18 cm
41.5 deg 32200 meters
... 20 cm
46.2 deg
32500 meters ... 22 cm
Maximum range = 32500 meters at 46.1 deg elevation
