A relative was clearing out his cabinet and has given me a box of cartridges bought in the 80s and I just wondered if anyone remembered or knew anything about them.
They're made by Maionchi. 3 inch, 46g magnum cartridges. I can't identify the shot size from the box, but there's a '1' printed on the shells themselves and on the tape sealing the box? They look to be fairly heavy duty.