Battue brings up a good point about FL bedding. When done right, it's great. I would venture to say this old model 70 has uneven pressure/stress on that barrel, that is helping to throw those shots out of the group. I'm still curious to see how the rifle is bedded and how much tension that forend screw has on it.. im also wondering the same thing about the rifle pictured. It doesnt even appear to be a pre 64, as the op stated. More details on the rifle are definitely in order..
