Joe & Suzi Williams(owners of Oregon Barrel Works and the Muzzleloading Emporium) are great people to deal with. Joe makes an excellent barrel, they are cut rifling and he can do them in any bore, groove and twist rate you want. The only reason I don't use him for all of my Muzzleloader barrels is his equipment is limited to 36" long and 2" Outside Diameter max barrel. I've been using custom barrels from them for almost a decade now and you won't do business with nicer people then Joe and Suzi. The quality is excellent, the turn around time from order to delivery is very good and the prices are very reasonable. And one more bonus is that Joe will cut you a barrel in 4140 Barrel ordinance if you request it, a lot of other muzzleloader barrel makers won't.

Colin