1 have 2 mod70's in 264wm (1 pre64, 1 post) 26" sporter's. The pre is '61 manufacturered and not sure of the manufacturered date of the other. I've inly shot it 3 times (3 shots total down the barrel). Purchased new in '15 or '16. Both have a 9t and I have shot up to 140's in the pre with great results (don't know what moa it was). Shot using sierra 85, 100 and 140 (Sbt not smk's). It still kept under 1moa past 2,500+ rounds. Winchester won't replace the barrel unless it shoots worse than 1.25 or 1.5 (not sure which I was told).I'd buy 1 gladly as it's my favorite cartridge since '78 (13yo). I added to the 264wm collection with a 110 action 32" 7.5t barrel I built. The pre64 had quite a volume of imr4831 used in it and a small amount of imr4320. Shot factory ammo (win superX, but need to check which bullets) until '84 when I started reloading. I still use (used) the same brass all the way thru (about 200 pieces) until I stopped shooting it.