I think the short story is that every rifle is a creature unique unto itself.
I have an old Ruger M77 in 30-06. When I got it, it shot ok if you call a 100 yard group about 1.5" wide and about 10" tall! As it warmed, the pressure point at the end of the forearm was so much that it kept warping the barrel upward. I gradually reduced the forearm pad by sanding, trying and sanding but the elongated groups remained, although improved.
Finally, I glass bedded the action and about 2" of barrel and free floated the rest. It is not a tack driver, but is perfectly adequate for a hunting arm (usually just under 2" with loads it likes) and the zero DOES NOT change with weather or even from season to season.
Good luck finding out what will work for YOUR particular rifle.