In 1965, I bought a then, brand new, M70 Pushfeed chambered in 300 Win Mag, also a relative newcomer on the block.
I mounted an El Paso Weaver 4X with a 3 minute dot in it, and took it to the range with some Winchester factory ammo.
I had 150 grain Power points, 180 grain Power points and 180 grain Silvertips.
I was elated to find that the ammo was generally quite accurate, with the 180 Powerpoints nudging MOA.
I was just into handloading at the time, so set out to work up a few loads....which this rifle also digested with aplomb.
One thing I DO remember on the negative side.....it kicked like a mule!! I had to learn to handle the beast, lol.
Over the next two seasons, I shot everything with that rifle, right from pests like coyotes up to ole Grizz.
Accurate and effective it was, but my near new M700 [1963 purchase] wooed me back to the fold.
Since then I have owned several M70's, both CRF and pushfeed, and all have done very well.
I even built a 6.5/06 on a 70 pushfeed action. Another gunnut on here owns that one now.
But alas, I have none at present, and none in the forseeable future, since I am a 700 "slut", and that probably will not change.

The new FN built ones seem very good, except for the triggers, but time will tell.
Regards, Eagleye.