Looks to me the barrel has some bottom side pressure. Bbl heating is causing rising poi.. check that first and if so, relieve..
Haven’t read but the first few posts and a couple since.
Then, was it me I would make sure the receiver was bedded in flat meaning any thing over a quarter turn on front and back screws from coming snug to tight isn’t. Middle screw if any should just come snug. Free float barrel from 2” plus\minus from receiver and go from there.
In extreme cases some forend pressure may be required. I have a Rem 700 in 243 that requires it just right to shoot 1.2 MOA. And a M98 ..3006 heavy bbl that shoots 1 in groups at 300 yards, full length bedded. I have no idea what it would do otherwise.....
WHATEVER...
Last edited by las; 07/31/18.
