I have a Katahdan .460 S&W mag barrel for my Encore. It shoots 454 Casull rounds like a dream. I like the Casull in it so much I have decided that I will load that round instead of the 460 (which I cannot get to shoot worth a dern). Cannot explain why it will shoot the Casull, the 45 LC but not the 460. Someone with a lot more sense than me will have to explain that one.
Might want to give it a thought since they are a stock barrel.