New User in Eastern PA, so the journey begins...

[James L. Martin]

I also believe the muzzle is swelled , mud or snow maybe. That may be a big problem, I would get it too a good gunsmith before doing any other work.

[Mike of the Mountain]

Somewhere on this site someone posted about a machine shop that used pressure and heat to remove the bulge from their double gun. Where that is I don't recall but I remember reading it in the past week.