I have this 12ga of what appears to be zinc shotshell as it is not shiny like aluminium it has a 6 petal crimp and a sort of wax in the grooves. The head looks like copper wash steel and magnet sticks to it. Slight shake, sounds of small shot. Nickel primer color. What I have gathered on this forum is that Alcan made similar ones to this. But this one has the crimp that different and there is no headstamp. Can y’all tell me what this means if anything?
Any pointers would help thank you all for your time!