Can someone help id this cartridge


Caliber 11.6 mm overal lenght 27mm case16mm.
They are no markings on the bottom. And how can i make replyes of comments ?


Any headstamp or indentations?


“11,6” is the bullet diameter, NOT Calibre.
The rim looks thin, like the Adams/Webley /Tranter series of .450s, as the case length fits in as well.
If you clean the grot from the rim, we can ascertain if it is a “Boxer” Patent case ( Composite) or a solid drawn brass case.

Also a Photo of the headstamp (if any).

Doc AV