I have had a few pre 64's and unlike most people on this thread have not found them to be exceptionally accurate. Although I have not experimented with their bedding which most probably would have improved their accuracy. The worst was a pre 64 .264 mag. I had it rebarreled with a shilen chrome moly barrel in 7 RM and it shot well, although I sold it to a guy who wanted it more than I did.

I have kept two push feed 70's that have great accuracy, as good as my M700's or Tikka lite.