The 1980 model Winchester M-70 FW in 7X57 was twisted 1/8 3/4,can't recall reading on the fire anyone having accuracy issues with the 140/150 bullets. Now the long throats is a separate issue.
Doc
I've got one of those 1980 models. I have yet to find a bullet weight it does not like.
I prefer the 140 Partition, for Deer, though.