Model 70 classic stainless 30-06 will not group

Mag box binding up? Action screws or scope base screws too long?
This woud be my suggestion. Had both happen before. Front action screw was putting pressure on the bolt. Easy to fix. I like to be be able to open up the floor plate and then move the magbox slightly up and down and back and forth. If not, a little filing/sanding will get it there.
 
Actually, part of the issue with the mag box “binding” is that it actually fits into the receiver very tightly. I always have to really work it back into the receiver when I reinstall it. So, it is at least bound from the top end
 
⬆️ what rickyw said. Mag box fits tight into the receiver just make sure there is a slight gap on the bottom where it mates up to the bottom metal.
 
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