Dave

I think I am really close... I might take 2 more thousands of the insert to insure that it will work in most if not all Rems...

The only other thing that bothers me is since the nose of the primer is held tight against the primer floor in the BP - the back pressure is unable to move the primer back and leak so it does swell the primer a bit. But, again for me it is an easy matter to pick it out with a TC primer pick. It wall not just fall out nor are you going to get it out with your fingernail...