Like all rear locking actions the 788 bolt will compress but it is not as bad as some with longer bolts. Shot one quite a bit in 6PPC which was loaded pretty hot and did not find stretching to be all that bad. Remington claimed the bolt would compress roughly .001" per 1000lbs of bolt thrust (about 5 or 6 times that of a 700). Other rear locking actions are somewhat worse in this regard. The Steyr Mannlicher and colt Sauer are considerably worse because the bolts are longer. Practically speaking, the amount of stretch in the 788 means, in a 22-250, fl sizing would be required about every fourth firing. My ppc needed to have the shoulders bumped about every fifth loading. GD
