See shown shell case without markings. It measures 37x254R57 and has a 22 mm primer pocket.
In my reference list it could be a Japanese 37 mm Type 1, but the shell case profile is different nor does it look Japanese.
I also have these measurements for a Canadian tank experiment but that is a part brass, part plastic case (no further details).
Last but not least, for 22 mm primer pockets, a bunch of US experiments are listed in my reference list.
Anybody has a clue what this is?
In my reference list it could be a Japanese 37 mm Type 1, but the shell case profile is different nor does it look Japanese.
I also have these measurements for a Canadian tank experiment but that is a part brass, part plastic case (no further details).
Last but not least, for 22 mm primer pockets, a bunch of US experiments are listed in my reference list.
Anybody has a clue what this is?
