20.3 cm SK C/34 naval gun

The 20.3 cm SK C/34 was the main battery gun used on all German World War II heavy cruisers.

These built-up guns consisted of a rifled tube encased within an inner and outer jacket with a horizontal sliding breech block. The breech was sealed with an 18 kg (40 lb) brass case containing 30 kg (66 lb) of smokeless powder with a 160 gram (5.6 oz) gunpowder igniter. A cloth bag containing an additional 21 kg (40 lb) of smokeless powder and 380 grams (13 oz) of gunpowder was loaded between the projectile and the brass case. Each gun could fire approximately five rounds per minute. Useful life expectancy was 510 effective full charges (EFC) per barrel.

Country Name Origin Year
Germany 1939
Country Name Operational Year Retirement Year
Germany 1936 1945 View

Admiral Hipper, Bl├╝cher, and Prinz Eugen each mounted eight of these guns in 248-tonne Drh LC/34 twin turrets with a maximum elevation of 37 degrees.

Type Naval gun
Coast defence gun
Place of origin Germany
Service history
In service 1939 - 1945
Used by  Kriegsmarine
Wars Second World War
Weight 20.7 tonnes
Length 12.15 meters (40 feet)
Shell 122 kilograms (269 lb)
Caliber 8-inch (20 cm)
Rate of fire 4 - 5 rounds per minute
Muzzle velocity 925 meters per second (3000 ft/sec)
Maximum firing range 33.5 km (21 miles)

End notes