My vote goes to the Ruger #1 single shot. You need to see one in person to really appreciate it. They are absolutely beautiful; both wood and metal. The action is very strong and the extraction cam is very positive. I only neck size the brass and I've never had an extraction problem. I have two and they are absolute tack drivers. Along with the M77 bolt action, old Bill Ruger got these two models right.
I bought a new R77ST for $180 and had it all these years. I never liked the stock fit compared to the M70. The original trigger was fair. It is a little muzzle light, and the action isn't recommended for rifle builds. If I had it to over again it would have been a LH 700 since the pre-64 M70 only came RH.
Of course if I knew what gun prices were going to be 30-40 years later.......