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57mm Gruson case

V

Vasco Da Gama

Well-Known Member
I almost walked past this case in a junk shop but the lack of any markings and the primer made me part with my pocket money. I think it is a 57mm Gruson case, beyond that I am stumped. Glad to be educated if somebody can tell me more about which country may have used completely unmarked ammunition. Pictured alongside a WW1 53mm German made Gruson case. The 57mm case is 252mm long, rim 73mm and mouth 58mm.
 

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If it is 250 mm long it is indeed a 5,7 cm Gruson L/25 case as used by several nations. Primer layout is possibly the identifier.
 
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