What is your definition of "long range" and what type of competition?
I use the old NRA defs of LR targets in 800-1,000 yards, but I also use a modified 1/4 mile version, 1-440yds SR, 441-880yds MR, 881-1320yds LR, and > 1,320yds ELR.
We used the 308 for a long time in Palma, 800, 900...