Thanks J.
This explains a lot and makes sense. The chamber to case relationship. It also explains the gray area of free bore, lead, and throat . From a manufacturer's perspective, I too would be generous in an area that could potentially be dangerous.
I 'm hoping after my discussion with Savage this morning that they understand this appears to be an issue in the opposite fashion. An interference in shorter (jump? free bore?) measure. And this includes off-the-shelf ammo with their conservation dims.
I would prefer casting be performed by a qualified smith, but I have my concerns after speaking with him this morning whether he could or help explain the results to me. So I don't think I'll be able to cast it unless I receive a solid referral in short time. Bore scope is certainly a great tool for identifying problems and providing info to the factory in my case. Not to mention all the stuff I could look at that I never have been able to before!

I appreciate all the help guys. Keep 'em coming.
Steve