Identification required

[kz11gr]

I've found a case, and need some help to identify

Brass case , no Hstp , body like a 2Pr , no primer .
Not necked , same form as a 2Pr pom pom , but shorter.

Caliber : 40mm
Length : 150 mm

????

 

[Hoeksel]

What is the rim diameter? There is a 40x151R51 case, Austria WW1

 

[kz11gr]

Hi hoeksel

rim diameter = 48 mm

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[Alpini]

there was a dutch 40x157R48, but with slight bottleneck and screwed in primer

 

[Hoeksel]

Alpini, correct, but that is a normal 2-pounder. The rim diameter fits the 2-pounder, I think the case is shortened. There is also a 40x213R48 case....but then still shortened. How does the primer look like?

 

[kz11gr]

hello

here the pics
the case seems not shortened