Hey Greg, funny the first time I am on here in years and this is one of the first posts I see. I'm not building big bore revolvers anymore short of rechambering my own 480 Blackhawks to 475. The funny part is I am building another 458 Lott Encore barrel as I sold mine way back as well as the others I had built for customers. At the same time I have a project going with the 450NE, 500-450NE and the 500NE. Should be interesting to say the least. Anyways I figured those fit the title of your post. If I decide to,do,it for a,business again I will do all the big bore black powder cartridges up to 45-120 as well as the ones listed.
I won't be wronged. I won't be insulted. I won't be laid a-hand on. I don't do these things to other people, and I require the same from them.- John Wayne http://www.dixiefirearms.net