Tinker
Interesting post. You must have the patience of an
oyster. I had, recently, a 500 BPE with the muzzzle of
the left barrel damaged, but only on the inside at the
rifling. I got mine fixed by buying a counter bore and
special ordering the pilot made to match the bore. I ended
up with a .070" recess to clean up the damage. It shot well
when finished, but I had to start from scratch on the
loads. I did not try with mine, but I think you would be
able to move the individual barrel groups by adjusting
the crown. I found out that you can, with a counter bore,
change it a lot.
Raff