The 06 is loaded to a lower pressure than 270 and others. The best accuracy I get from my favorite 06 is hotter than what is in manuals. My beat up 721 with Kevlar stock and a screwed in 700 barrel can shoot ~ 1/2" 5 shot groups with a couple powders. Unfortunately the best shooting load is IMR4350 which isn't considered temperature insensitive.
H4831sc and H4895 seem to do fine, but the loads are fairly warm with the H4895.
Will other powders
consistently shoot (not
can shoot) one moa for five shots? If so, that's quite precise for a sporter weight rifle in a cartridge with nontrivial recoil. Then you have temperature insensitive options.
