I like to bed most things tight. This includes the Ruger m77 and Winchester model 70 and CZ550 and old M1917 sporters I've glassed in the past.. However, when bedding, I don't snug the action screws down tight. Just enough to keep the action in the right spot. This also keeps you from torqueing/twisting the action. The action should lay in there in a neutral state while glass bedding is curing. You can later torque the action screws down tight or to spec after the bedding compound has cured.
Brad's reasoning for completely tightening the action screws on the Montana was so the action would contact the pillars and have a metal to metal contact.
