[Paul Harm]

Paul, it sounds like maybe someone " jug choked " the barrel. I've done it a couple of times to put some choke back in a gun but because it's so time consuming I do it only for myself. Back in the day ol V.M. Starr use to win turkey shoots with his muzzleloader against those new breechloaders. He used a cyl. bore gun jug choked to extra full - a lot of guys wouldn't shoot if he showed up. Have your gunsmith check the difference from the honed out area to the muzzle - that's your true choke.