I think there is simply no advantage to CRF over push feed or vice versa. While the original post '64 had some issues unrelated to this, Winchester corrected them.
I have killed African dangerous game with both CRF and push feed model 70s (with handloads no less), non-dangerous game with Weatherby MkVs and a Husqvarna (Mauser?) action, and the only failure was with the Husqvarna.
I have also shot thousands of rounds with both types of Model 70s in NRA Highpower matches, using .308 and 30-06 ammo, with nary a problem.
Also, every military rifle designed since 1903 (actually since 1898 as the Springfield was merely a copy of the Mauser) has been push feed.
