I ave a Sako 85S in 260 Rem and it is capable of extreme accuracy. I shot 3 140 VLD's into a hole that measures .296 across COAL 2.94. A host of powders have shot under MOA but my favorites have been H4831SC, W760/H414, IMR 7828SSC, H4350 and N560 pretty much in that order. Of late my favorite bullets have been 120TSX and 120NBT Rem 9.5's have produced the smallest groups. I generally just seat enough bullet so the top of the boattail is at the shoulder/neck junction I don't think I have ever been in contact with the Lans.
Good luck and shoot straight y'all
Awesome! I just loaded up 15 rounds in 3's. All separated by 1.5 grain increments. All at 2.90. I'll get to it soon. Thank you for the information! You don't by recall those powder charges that was accurate?