Evening All,
Spotted this case today - and since this thread focuses on British related protruding case primers...
It appears to be a British 3" naval case dated 1914 with no gun related calibre markings, and has a Royal Labs protruding primer dated 5/01....... first impressions is that the primer is not the correct one (although it does screw into the case)
Thoughts - incorrect primer?
Unusual, perhaps not a common case to find.
Case Dimensions:
Length: 39 cm (15")
Case diameter: 3" (7.62cm)
Base diameter: 4" (10.4cm)
Obviously not shortened as the mouth tabs are there.
Cheers
Drew
It is a Mk I 12pr 12cwt case, as ydnum303 has stated and the primer/adapter is the correct type, although perhaps a bit early for a 1914 dated case.