I've seen lugs that are galled. I've seen lugs that only contact on one lug and not the other.. As long as contact is a relatively even percentage of contact and are not galled, they're left alone..
I've had a couple of bolts with lugs off enough that they had to be recut in order to get them right..(not just Rem.) We're talkin' .001-.005 here usually.. I remember reading of a rifle-builder that found one bolt off by .014!!
It does happen..
