I am a new 6.5 Grendel enthusiast. I'm now pretty familiar with the twist/performance effect vs. bullet weight with .223. Can someone fill me in on this science for the Grendel? I have a 1 in 8 and I thought I would like to work on loads for the 120 & 140 Hornady AMax in a 24" Pac-Nor barrel/AA upper receiver & bolt group. I'm looking for max accuracy at max range. Guide me.