8" / 45 EOC Pattern "W"
Caliber = 8.0 inch (20.3 cm)
Shell weight = 256 lbs (116 kg)
Muzzle velocity = 2592 fps (790 m/s)
Relative ballistic performance: 0.60
Muzzle energy = 36.268 megajoules = 13364.7 foot-tons
Relative muzzle energy: 0.82
Typical barrel length: 43 calibers
Elevation Range Time Velocity Fall Angle
2.5 deg 4600 yards 6.6 sec 1752 fps 3.3 deg
5.0 deg 7600 yards 12.3 sec 1380 fps 7.6 deg
7.5 deg 9700 yards 17.6 sec 1169 fps 12.7 deg
10.0 deg 11400 yards 22.4 sec 1044 fps 18.0 deg
12.5 deg 12800 yards 26.9 sec 965 fps 23.4 deg
15.0 deg 14000 yards 31.2 sec 917 fps 28.8 deg
20.0 deg 15900 yards 39.3 sec 874 fps 38.6 deg
25.0 deg 17400 yards 46.8 sec 872 fps 46.8 deg
30.0 deg 18400 yards 53.8 sec 889 fps 53.3 deg
35.0 deg 19200 yards 60.5 sec 916 fps 58.7 deg
40.0 deg 19500 yards 66.9 sec 946 fps 63.1 deg
45.0 deg 19600 yards 72.8 sec 975 fps 66.6 deg
50.0 deg 19200 yards 78.4 sec 1004 fps 69.7 deg
Armor Penetration - Vertical Belt Armor
(Relative armor quality, 0.83)
Maximum penetration: 18.25 inches
Elevation Range Belt Deck
1.1 deg 2300 yards 14 in
1.9 deg 3700 yards 12 in
3.0 deg 5300 yards 10 in
4.7 deg 7300 yards 8 in
7.1 deg 9400 yards ... 1 in
7.7 deg 9900 yards 6 in
14.1 deg 13600 yards 4 in
17.5 deg 15000 yards ... 2 in
27.2 deg 17900 yards ... 3 in
33.3 deg 19000 yards 2 in
39.0 deg 19500 yards ... 4 in
Maximum range = 19600 yards at 42.7 deg elevation
8" / 45 Model 1921
Caliber = 8.0 inch (20.3 cm)
Shell weight = 256 lbs (116 kg)
Muzzle velocity = 2676 fps (816 m/s)
Relative ballistic performance: 0.89
Muzzle energy = 38.654 megajoules = 14244.2 foot-tons
Relative muzzle energy: 0.87
Barrel length: 45 calibers
Elevation Range Time Velocity Fall Angle
2.5 deg 5300 yards 6.9 sec 1985 fps 3.1 deg
5.0 deg 9000 yards 13.2 sec 1617 fps 7.1 deg
7.5 deg 11800 yards 18.9 sec 1401 fps 11.5 deg
10.0 deg 14100 yards 24.3 sec 1262 fps 16.3 deg
12.5 deg 16000 yards 29.4 sec 1171 fps 21.3 deg
15.0 deg 17700 yards 34.2 sec 1113 fps 26.1 deg
20.0 deg 20400 yards 43.4 sec 1058 fps 35.2 deg
25.0 deg 22600 yards 52.0 sec 1051 fps 43.1 deg
30.0 deg 24300 yards 60.1 sec 1069 fps 49.6 deg
35.0 deg 25500 yards 67.9 sec 1100 fps 55.0 deg
40.0 deg 26300 yards 75.2 sec 1135 fps 59.4 deg
45.0 deg 26500 yards 82.2 sec 1173 fps 63.2 deg
50.0 deg 26200 yards 88.7 sec 1209 fps 66.5 deg
Armor Penetration - Vertical Belt Armor
(Relative armor quality, 0.83)
Maximum penetration: 19.04 inches
Elevation Range Belt Deck
1.8 deg 4100 yards 14 in
3.0 deg 6100 yards 12 in
4.6 deg 8500 yards 10 in
6.1 deg 10300 yards ... 1 in
7.2 deg 11500 yards 8 in
11.8 deg 15500 yards 6 in
15.1 deg 17800 yards ... 2 in
21.6 deg 21200 yards 4 in
22.7 deg 21700 yards ... 3 in
30.9 deg 24500 yards ... 4 in
40.4 deg 26300 yards ... 5 in
48.9 deg 26300 yards 2 in
Maximum range = 26500 yards at 44.8 deg elevation
7.5" / 45 Model 1908
Caliber = 7.5 inch (19.0 cm)
Shell weight = 200 lbs (91 kg)
Muzzle velocity = 2835 fps (864 m/s)
Relative ballistic performance: 0.99
Muzzle energy = 33.964 megajoules = 12515.6 foot-tons
Relative muzzle energy: 0.93
Typical barrel length: 48 calibers
Elevation Range Time Velocity Fall Angle
2.5 deg 5800 yards 7.3 sec 2037 fps 3.2 deg
5.0 deg 9700 yards 13.8 sec 1642 fps 7.2 deg
7.5 deg 12700 yards 19.8 sec 1410 fps 11.9 deg
10.0 deg 15100 yards 25.3 sec 1269 fps 16.8 deg
12.5 deg 17100 yards 30.6 sec 1176 fps 22.0 deg
15.0 deg 18800 yards 35.6 sec 1119 fps 27.0 deg
20.0 deg 21700 yards 45.0 sec 1067 fps 36.1 deg
25.0 deg 24000 yards 53.9 sec 1064 fps 44.0 deg
30.0 deg 25700 yards 62.3 sec 1085 fps 50.4 deg
35.0 deg 27100 yards 70.3 sec 1118 fps 55.7 deg
40.0 deg 27900 yards 77.9 sec 1156 fps 60.0 deg
45.0 deg 28300 yards 85.2 sec 1196 fps 63.7 deg
50.0 deg 28000 yards 92.0 sec 1234 fps 66.9 deg
Armor Penetration - Vertical Belt Armor
(Relative armor quality, 0.83)
Maximum penetration: 18.68 inches
Elevation Range Belt Deck
1.5 deg 3700 yards 14 in
2.5 deg 5800 yards 12 in
4.0 deg 8200 yards 10 in
6.2 deg 11200 yards 8 in
6.4 deg 11500 yards ... 1 in
10.1 deg 15100 yards 6 in
15.9 deg 19400 yards ... 2 in
18.8 deg 21000 yards 4 in
24.1 deg 23600 yards ... 3 in
33.2 deg 26700 yards ... 4 in
43.8 deg 28200 yards ... 5 in
45.2 deg 28300 yards 2 in
Maximum range = 28300 yards at 45.3 deg elevation
6" / 45 Model 1914
Caliber = 6.0 inch (15.2 cm)
Shell weight = 110 lbs (50 kg)
Muzzle velocity = 2651 fps (808 m/s)
Relative ballistic performance: 0.80
Muzzle energy = 16.307 megajoules = 6009.3 foot-tons
Relative muzzle energy: 0.87
Barrel length: 45 calibers
Elevation Range Time Velocity Fall Angle
2.5 deg 4800 yards 6.7 sec 1781 fps 3.3 deg
5.0 deg 7900 yards 12.6 sec 1394 fps 7.7 deg
7.5 deg 10100 yards 17.9 sec 1182 fps 12.7 deg
10.0 deg 11800 yards 22.8 sec 1055 fps 18.1 deg
12.5 deg 13300 yards 27.4 sec 975 fps 23.6 deg
15.0 deg 14500 yards 31.8 sec 926 fps 29.0 deg
20.0 deg 16500 yards 39.9 sec 884 fps 38.6 deg
25.0 deg 17900 yards 47.6 sec 883 fps 46.9 deg
30.0 deg 19100 yards 54.8 sec 902 fps 53.5 deg
35.0 deg 19800 yards 61.6 sec 929 fps 58.8 deg
40.0 deg 20200 yards 68.0 sec 959 fps 63.1 deg
45.0 deg 20300 yards 74.2 sec 990 fps 66.7 deg
50.0 deg 19900 yards 79.9 sec 1019 fps 69.8 deg
Armor Penetration - Vertical Belt Armor
(Relative armor quality, 0.83)
Maximum penetration: 14.28 inches
Elevation Range Belt Deck
1.5 deg 3200 yards 10 in
2.8 deg 5200 yards 8 in
5.0 deg 7900 yards 6 in
9.7 deg 11600 yards 4 in
10.0 deg 11800 yards ... 1 in
23.0 deg 17400 yards ... 2 in
24.8 deg 17900 yards 2 in
37.3 deg 20000 yards ... 3 in
Maximum range = 20300 yards at 43.0 deg elevation
6" / 50 Model 1921
Caliber = 6.0 inch (15.2 cm)
Shell weight = 110 lbs (50 kg)
Muzzle velocity = 2844 fps (867 m/s)
Relative ballistic performance: 0.90
Muzzle energy = 18.766 megajoules = 6915.4 foot-tons
Relative muzzle energy: 1.00
Barrel length: 50 calibers
Elevation Range Time Velocity Fall Angle
2.5 deg 5500 yards 7.2 sec 1896 fps 3.3 deg
5.0 deg 9000 yards 13.5 sec 1481 fps 7.8 deg
7.5 deg 11500 yards 19.1 sec 1259 fps 12.8 deg
10.0 deg 13500 yards 24.4 sec 1122 fps 18.2 deg
12.5 deg 15200 yards 29.3 sec 1039 fps 23.7 deg
15.0 deg 16600 yards 34.0 sec 988 fps 29.1 deg
20.0 deg 18800 yards 42.7 sec 945 fps 38.6 deg
25.0 deg 20600 yards 50.9 sec 946 fps 46.7 deg
30.0 deg 22000 yards 58.7 sec 967 fps 53.2 deg
35.0 deg 22900 yards 66.1 sec 998 fps 58.4 deg
40.0 deg 23500 yards 73.1 sec 1032 fps 62.6 deg
45.0 deg 23700 yards 79.8 sec 1066 fps 66.2 deg
50.0 deg 23300 yards 86.0 sec 1099 fps 69.2 deg
Armor Penetration - Vertical Belt Armor
(Relative armor quality, 0.83)
Maximum penetration: 15.68 inches
Elevation Range Belt Deck
1.0 deg 2700 yards 12 in
2.0 deg 4600 yards 10 in
3.4 deg 6900 yards 8 in
5.8 deg 9800 yards 6 in
8.7 deg 12600 yards ... 1 in
10.9 deg 14100 yards 4 in
20.8 deg 19200 yards ... 2 in
27.8 deg 21400 yards 2 in
33.1 deg 22600 yards ... 3 in
49.4 deg 23400 yards ... 4 in
Maximum range = 23700 yards at 44.0 deg elevation