German
17 cm/40 (6.75") SK L/40
Updated 21 May 2006
This weapon was used as secondaries on German pre-deadnoughts.  In World War II these guns were still in use as coastal artillery.  They were then supplied with a lighter shell with a larger propellant charge for increased range.

Actual bore diameter was 17.26 cm (6.795 in).
WNGER_11-40_skc04_Hessen_pic.jpg

Pre-dreadnought Hessen about 1930
The 17 cm guns are in the amidships turrets and casemate emplacements
U.S. Naval Historical Center Photograph # NH 88049
WNGER_675-40_skc04_Deutschland_pic.jpg

Two 17 cm/40 (6.75") guns on SMS Deutschland
Picture courtesy of Peter Lienau
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Gun Characteristics
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Designation 17 cm/40 (6.75") SK L/40
Ship Class Used On Braunschweig and Deutschland (1904) Classes
Date Of Design about 1904
Date In Service 1906
Gun Weight 23,600 lbs. (10,700 kg)
Gun Length about 272 in (6.904 m)
Bore length N/A
Rifling Length N/A
Grooves N/A
Lands N/A
Twist N/A
Chamber Volume N/A
Rate Of Fire about 5 rounds per minute
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Ammunition
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Type Separate
Projectile Types and Weights World War I:  N/A
World War II: AP - 138.5 lbs. (62.8 kg)
Bursting Charge N/A
Projectile Length N/A
Propellant Charge N/A
Muzzle Velocity World War I:  N/A
World War II:  2,871 fps (875 mps)
Working Pressure N/A
Approximate Barrel Life N/A
Ammunition stowage per gun 130 rounds
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Range
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Elevation World War I AP Shell
Range @ 22 degrees in World War I 15,860 yards (14,500 m)
Elevation With 138.5 lbs. (62.8 kg) AP Shell
Range @ 22 degrees
As Coastal Artillery in World War II		 22,000 yards (20,100 m)
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Mount / Turret Data
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Designation Single turrets
   Braunschweig (2)

Casemates
   Braunschweig (12) and Deutschland (14):  MPL
Weight  N/A
Elevation Turrets:  -4 (?) / +30 degrees
Casemates:  -5 / +22 degrees
Elevation Rate N/A
Train about +80 / -80 degrees
Train Rate N/A
Gun recoil N/A
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Data from
"Naval Weapons of World War Two" by John Campbell
"German Warships 1815-1945" by Erich Gröner
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Special help from Peter Lienau and Dave Alton