I have had more than one Model 70 over the years. All were shooters, some needed a bit of bedding and floating help before they decided that 1MOA or less was what they were capable of. Keep in mind that when I bought my Model 70's Winchester did not glass bed the actions or float the barrels. While most bow to the pre 64 models, including the new, but not new pre 64 actions as being the epitome of rifles, I have found that the post 64 models were as accurate or more accurate than the pre 64's. Both of my current Model 70's as well as the one that I had converted from a hunting to match rifle back in the 70's did and can fire 5 shot groups with all 5 rounds touching. I have had one or two Model 70's notably pre 64 models that would not shoot 1 MOA or less and in some cases were 3 MOA rifles. One was a 300WM and the other was a 7MM Mag, both were pre 64 but modern actions but no matter what would not shoot despite trying anything and everything. Sometime a barrel simply wont shoot. Something hard to take when you just spent several hundred if not thousands of dollars for your new dream rifle. So all in all, what you have is what you have got, unless you are willing to play with it, just like you do your new puppy to find out what it really can do. In the last 62 years I've only given up on two rifles. a Winchester pre 64 model 70 in 300WM and a Savage Axis in 223 Rem. Every other one, including a few
Remington 742's and 7400s after much tinkering were able to do 1 moa, but not less. Contrary, the model 760 pump was a tack driver.
Does any of this make sense? Some yes, some no but the fun comes in the trying to make sense of just about anything these days.