don't know about this by-gone era thing with M70s. As far as I know, David Miller Co. and Mr. Echols still use M70s exclusively for their clients rifles. As for me, I just got back a pre-64 action with a new douglas barrel in .220 swift for my coyote rifle and another pre-64 in .375 is heading to Alaska on Kodiak Island next year for a brown bear hunt. I just like the way they work out in the game fields.