New to me S&W mdl 10-5 that I just got and went through Outpost's check of functioning and it appeared to pass in all regards - but this is the first time I've done it and probably screwed up some stuff. Anyway, took it to the woods Monday to shoot for the first time and, while it has a beautifully soft double action it will also turn past the bolt stop? and lock up. This does not happen when firing but when I close the cylinder and turn it to index.
I'm guessing the bolt stop or bolt stop spring - if there is such a thing - is the culprit.
If it matters I was shooting a 148gr button nose wadcutter in front of 2.3gr BE.