I an my son's have owned a goodly number of RUGERs with the tangs safety, and have never seen the possiblity of an action flexing enough to bind up the bolt.
If this is possible, it would take a stock which is badly warping or someone turning down the action screws with an extreme amount of pressure.
I currently own two such rifles, an old "flat bolt' 243 and a 270 and I can't put enough pressure on them, out side of using some type of wrench or pry bar to even come close to binding the bolt..
Keep looking, as there has to be some clear reason for this situation.
Keep em coming!
CDOC