the one downfall of the 788 is the rear locking bolt, but on the otherhand the action is known to be stronger in design than the 700. It has the fastest lock time out there for any production rifle. They seem to be harder to bed right, and really need a better stock. Another problem with the 788 is the front half of the bolt assembly. If you can tighten it up; it will seriously improve your groups size. I know of one that still has a factory .308 barrel (the short one at that), and shoots in the high fours. I've seen a rebuilt one that was chambered in .243AI, that would shoot .250" groups.
gary