WWI German cartridge case ID

[coleman]

Hello,
Can anyone help ID this WWI German cartridge case ?

PATRONENFABRIK KARLSRUHE MAI 1918
3 Sp 255
C/12

WEIGHT 14 KG
DIAMETER ON TOP 175 mm
LENGTH 1045 mm

Thank for your help

 

[silent knight]

Hello

This cartridge case is for the german navy 17 cm. SK L/40

Pascal

 

[thekees]

Marked for the Army since Naval date are in roman numbers for the month, while army used letters:

Army Navy
Mai V

etc.

 

[kahu1]

Marked for the Army...Maybe for a railway gun?
Researched one of these a while ago,initially got very confused by the 175mm diameter,as 175mm guns aren't common,the bore being 170mm.

cheers
Bob

 

[charley777]

Hi Bob
I thought the 17cm guns were 173mm bore?
173x726R x216 17cm K18 in Morserlafette
173x1050R x203 17cm K(E), SK L/40 , SK C/95
Where did you learn of 170mm bore?
Charley

 

[silent knight]

In 1916 -1917, battleships of the class "Braunschweig" and "Deutschland" were considered obsolete and removed from the line.
since then, there secondary armament and notably the 17 cm SK L/40 were released to the army.
At first, they were mounted on two wheels carriage: 17 cm SK L/40 i.R.L. (in Rder Lafette) .
In second time they were put on railways cars: 17 cm SK L/40 auf Eisenbahn Wagen "Samuel"

The bore was 172,5 mm

Pascal

 

[kahu1]

Hi BobI thought the 17cm guns were 173mm bore?173x726R x216 17cm K18 in Morserlafette173x1050R x203 17cm K(E), SK L/40 , SK C/95Where did you learn of 170mm bore?Charley

You're right Charlie. I was thuinking of the 17cm category. The case i was researching was 17.5cm , gun bore/lands of 173mm(nominal) and rifling/grooves of 175mm.