Originally Posted by Joe Wood
My goodness! Just open the rim by .002–isn’t going to hurt a single thing. Believe me, Boswell wouldn’t have hesitated a split second to do it. Zero affect on originality. It may be that the chamber reamer originally used was smaller than normal. People act as though components are available on every street corner. Not!

I had this problem a few years ago with an English 20 ga side-by-side. Got my smith to open the rim. Worked perfectly and could use any ammo that I wanted.