To me it's all about the barrel in that piece. Large barrels are interesting. You will find barrels out there that are nothing less than perfect. AND....you will find barrels that fall somewhat short of that. I've seen his work that was rifled deeper than deep & people had trouble making them do much. I've seen them that were, shall I say, less than smooth. So take a jag & the tightest patch & some oil & feel the inside of that tube. If it cuts the patch or you can feel irregularities in the diameter, it's less than ideal. Also look at the depth of rifling, compare it to a Getz or Green Mtn, ect. Deep rifling can be hard to seal up.
And, of course crawl in behind it laid on a chunk. The trend years ago was to build reproductions of of old rifles & the fit can be rather challenging.
