Renton83
Member
I recently got a Winchester model 12 made In 1917 with 30" full choke barrel. The barrel has not been cut back. Pattern testing it doesnt seem like full choke and when I measured the choke it's .720 and a dime easily slides in. Is my choke just worn out? My dad has never seen this on a shotgun, he thinks maybe years of shooting slugs wore it out. I'm guessing I cant do much about it since adding a screw in choke wouldn't work with such a thin barrel wall. Any ideas if I can fix this and what caused it