Dave has been pinning slug gun barrels for years. He use to work at a small gun shop/lumber store in Solvay, NY for years. He left there to work at Bass Pro Shop's In Auburn, NY. Now he's on his own from what I hear. Dave is one heck of a gunsmith. He's work of a few things for me. Truth be told though, there are a lot of people that will pin a slug gun barrel around here. A lot of guys have been doing it for years.