Unknown shell cassing german 1917

[RED LION]

i have this casse since years in my collection but never found info what a gun used this casses .
headstamps on bottom of cassing
PATRONENFABRIK KARLSRUHE OKT 1917
5 SP 255
FRIED. KRUPP A.G 12

CASSING WEIGHT 5,5 KG
DIAMETER ON TOP 19 cm
from botom to top diferent diameter the casse is conic and have a bord look pics .
thank for all help for id .

[Alpini]

it was for the "18,5 cm schwere Versuchshaubitze" (18 cm V. H.)"

have a look here:

http://www.wk2ammo.com/showthread.php?t=5149

[RED LION]

the link go to a web page and you must be registered to look topics !
are this casses rare ? i have found only this in all my collecting years
this whas a fleamarket found in belgium .

[Alpini]

yes, it is very rare! Only some pieces of this gun were in field test.

In the Wk2Ammo forum thread you will find some background informations and pictures of this rare gun...

[Dronic69]

are this casses rare ? i have found only this in all my collecting years
this whas a fleamarket found in belgium .

Excellent find!!!
You just gotta love FleaMarkets!!!!
Some of my unusual and rare finds have been found in them!
Cheers
Drew

[RED LION]

WOW only 12 guns in field test thats rare i have found last year a 5 cm FLAK 41 casse it is a rare bird too but moore flak 41 where on field than
the 18 cm V.H.

[RED LION]

now looking for a shell

[charley777]

Hello....when one of these cases was featured on wk2ammo (as linked above) i asked for the dimensions . Sadly no reply....perhaps i'll have better luck with BOCN. Please someone provide the length of this case. And the diameter across the rim.
Thanks very much.

[arjen]

Hello Charley777,

the length is 320 mm, rimdiameter is 217 mm....

Kind regards Arjen

[charley777]

Thanks very much for providing the dimensions for this great cartridge case. Charley