Thanks, Crow. That's somewhat comforting. I'm a little surprised that it's not particularly unusual for a mass produced belted magnum to allow .020"+ of lengthwise case expansion from factory formed brass. Assuming the chamber's shoulder and belt counterbore were reamed in the same operation, I would have thought that the dimensional relationship could be kept uniform and reasonably close to the "standard". Maybe it's intentionally "loose" to insure that it will digest practically any ammo?
