Help me ID this piece from a gun show, no markings, bullet caster?
An old-timer duck hunting buddy of mine gave me this, said he got it from another old-timer at a gun show over 20 years ago down around West Virginia. The legs are castings, so I'm assuming what ever it is was mass produced and not made in someone's garage or machine shop at home. The 3 separate rings kind of "float" back and forth when you turn the top crank. That activates the 3 cams on either side. This may not even be gun related. Any thoughts?