15 cm SK L/40 naval gun

15 cm SK L/40
A 15 cm SK L/40 gun aboard the German auxiliary cruiser SMS Wolf circa. 1916–18
Type	Naval gun Coast-defence gun
Place of origin	German Empire
Service history
In service	1898—1945
Used by	German Empire Austria-Hungary The Netherlands Nazi Germany
Wars	World War I World War II
Production history
Designer	Krupp
Designed	1897
Manufacturer	Krupp
Variants	No.2, No.3, No.4, No.5 Krupp 15 cm L/40 K94 Škoda 15 cm L/40 K96
Specifications
Mass	4,460 kg (9,830 lb)
Length	6 m (19 ft 8 in)
Barrel length	5.4 m (17 ft 9 in)
Shell	Separate-loading, cased charge
Caliber	149.1 millimeters (5.87 in)
Breech	horizontal sliding breech block
Elevation	-7° to +20°
Traverse	-150° to +150°
Rate of fire	4-5 rpm
Muzzle velocity	800 m/s (2,600 ft/s)
Maximum firing range	13.7 km (8.5 mi) at 20°.

The 15 cm SK L/40^{[Note 1]} was a German naval gun that was used as secondary armament on pre-dreadnought battleships, protected cruisers and armored cruisers of the Imperial German Navy in World War I. It was also used as a coast-defence gun during World Wars I and II.
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