Im running them in my LaRue 18 inch, 44.6 gr Varget, FGMM Lr primer, Lapua brass, 175 TMK at 2.840 COAL is getting me 2600 fps with a SD of around 5 across 10 rounds. Most consistent round ive shot at 1100 yards from a semi auto, prior to this I had Hornady 178 Amax, and also tried the Berger Jugg 185s. The groups opened up past 44.6 and I wasn't picking up much velocity, pressure signs started at 44.9 gr with popped primers, but its a semi auto, so likely youre going to be able to stretch that OAL out and get more consistency with a bolt gun.