Hey Kodiak,
Would you mind sharing the velocity you're getting on the 75s and 80s?
Rem 700’s (x2) with 75’s and 1:7” twist 2980fps. 88 gr ELD M are 2800 in one rifle and 2850 in the other. To be fair, that isn’t leaning on either rifle, it was simply an educated guess on powder charges that would probably show good enough accuracy to see what they would do at distance that turned into “don’t think I can improve on that load” loads lol.
Kimber Montana 1:9” twist and moly 75 Amax’s are 3150 fps. I’ve run a lot of rounds through this one and it’s ready for a new tube (it’ll get an IBI 1:7 same as the 700’s) and I’ve messed around with different loads and powders under 75’s for years.
Haven’t tried any 80’s, I don’t see the need as I have a lifetime of 75 Amax’s, and 88’s are an absolute hammer.