RE: Remington model 788 6mm
I have owned several Remmy 788's. all shot very well.
Why are you set on a 788?? To me they always seemed like a rifle that Remington was trying to produce cheeply, the magazine is kind of tinny, the stock is plain, the bolt has the lugs at the rear which is far from the strongest way of locking a bolt into the action.
I know... they shoot well but so do many newer guns which can be readily found at the same or a better price