Acer,
I don't know the full extent of what he can do, but he did tell me that he can do swamped, tapered or straight octagon, octagon to round and smoothbore. Maximum barrel length is 42". He can make ball and bullet barrels for muzzleloaders. Don't know if he does the false muzzle thing. His barrels have won regional matches in the Spokane, Washington area, I know that. He has fairly standard calibers .40, .45, .50, .54, .58, .62 and says he is getting a reamer for .662. He may have others, but those are what he cited to me. He will also make octagon rifle barrels up to a width of 1 1/8" (I think he said he could go bigger, but don't quote me). He will also do pistol barrels to your specifications. He is retired logger and bought out someone in Kalispell, Montana who had made barrels for 27 years.
Ez