The strikes are equally opposed..so 12 and 6. Or 3 and 9...etc. There are 3 or 4 like that..at the end of the box. Maybe someone put these in a .44 rimfire and attempted to fire them? I don't know..just guessing.
I think I'll keep them..just in case I come across a .41 long rimfire gun.Got to be one out there..