10.5 cm SK L/45 naval gun

The 10.5 cm SK L/45 (SK - Schnelladekanone (quick-loading cannon) L - Länge (with a 45-caliber barrel) was a German naval gun that was used in World War I and World War II.

Description
The 10.5 cm SK L/45 gun weighed 1450 kg, had an overall length of 4.725 m. It used a horizontal sliding-block breech design.

Weapons of comparable role, performance and era

 * QF 4 inch Mk V naval gun Approximate British equivalent firing slightly lighter shell
 * 4"/50 caliber gun Approximate US equivalent, firing slightly lighter shell at higher velocity