Re: Help now please 7mm RUM Free bore?
Mine has a custom chamber, with a reamer I spec'd myself before 7mmRUM was a factory offering. I measure seating depth with a Stoney Point Comparator. Definitely NO freebore there, but I do have to chase the lands regularly.
Unless you want a custom chamber, I guess you'll have to make do with that extremely long jump ! Sucks, huh? You might get a tad closer with a Sierra 175MK, but if it's shooting good now, don't fix what ain't broke!