I have an original Thompson Center Renegade 56 cal SMOOTH BORE gun. No rifling. It requires a round ball, with a patch. The round balls that I cast from a buddy's mold back in the 70's measure .550" around.
The problem is that my buddy is no longer around, and I'm almost out of the balls I cast back in the 70's.
I've done a fair amount of looking for a round ball mold to cast this size, to no avail.
Anyone have a clue as to where I can get such a mold?