rabbit
The fit of the dolls head itself was not affected much. The area at the dolls head base took some fileing though. There is a small keeper and screw that holds the ejectors in place and that was not in the barrels when we fit them. After fitting, the ejectors did not heed any fileing or the keeper for that matter.
Ron has fit quite a few barrels but mostly on over and unders. I think he did this Parker the right way but thats only my opinion.
It would be very informative to have seen the gun smith that KY Jon described. Someone with that kind of knowledge is not replaceable. I don't think I would want to take a hammer to the standing breach of a double but the first time I saw a guy in the Chicago Ford plant adjust a door on a new car I was amazed at that to. I guess everything is relative to getting the job done and being efficient with your time.
Regards, Gordon