Was a little behind on cleaning report from the match, but I seem to have gotten one that has a very nice arbor fit. Came apart with just a little bit of resistance [harumph!] but everything fit snugly and securely. Cleaned up easily, but wow, the cylinder gap is barely .0002! This gun ran well through the match with no hang ups or misfires, but with that lack of breathing room, it would never make it with black powder as is. I have a holster on the way in for it, so it looks like my faithful Vaquero will go to back up status.