Re: Powder and bullet of choice for .308
42.7-43.0 Gr BENCHMARK under 155 AMAX's. They dont shoot worth a crap at 100-600 yards but boy do they group at 1K. 3.5" to be exact.
Another good load is 45.0 VARGET under the 175 SMK.
One of my favoraites. 43.0 RL-15 under the 190 SMK. VERY flat, little wind drift and most of the time they group .5 MOA at 1K.
Long range shooting is a process that ends with a result. Once you start to focus on the result (how bad your last shot was, how big the group is going to be, what your buck will score, what your match score is, what place you are in...) then you loose the capacity to focus on the process.