75 x 117R necked case.

[ron3350]

I have this 75 x 117R case that is necked so not a straight case. It could be a 77mm but mouth is not perfectly round.
German made 1915 with Krupp primer. I cannot see any crimps.
Hawkinson book has 75x118R with 88mm rim. 77x118R with 87mm rim. Not a necked case. The shoulder is perfectly formed.

75mm approx mouth diameter. 76.5-77.5mm mouth outside diameter (not perfectly round).
Shoulder is 73mm and 78mm diameters. Shoulder centre is 75.0mm from the rim.
Base is 79.5mm. Rim is 87.1mm diameter. Case is 77.2mm long

Which case is this please.

 

[Alpini]

It's most probably for the Krupp 7,5 cm L/14 mountain guns which were produced early in 1914 for export and which were seized when the war started.

 

[ron3350]

I made a typo. The case is 117.2mm long. Not 77.2mm as shown. Thanks Alpini for the reply.