OK, I'm very interested to know when Weihrauch changed from the traditionally mounted style, as in threaded to the barrel block, to using a capture nut.Also, it seems to me that IF the traditional method resulted in some unintended bore compression, and IF the breech nut method avoids this issue, this could really matter to me as a buyer.Has anyone noticed anything related to this?I have a pretty keen interest in finding out, so I hope there is some collective knowledge to be shared.Thanks all!