The nice thing is that alot of bullet weights work with the 308 if, as stated before it is the right type of bullet. I prefer different weight bullets in 30 cal, depending on case capacity & twist. In 300WM, I like 180-200gr, may load up some 168gr for my Son & an upcoming Antelope hunt, but that is an exception to the rule. 30-06, I usually use 165-180 gr & in my Contender 30-30AI, 150's.
I recently traded for a M700VS in 308 & I am looking at using 168-175MK & 168/178A-Max for Targets & 165 BT/Acc. & 168BST for hunting. Like most here, I believe these are the best weights for a balance of vel./energy/accuracy/wind bucking with the modest,
but potent 308 case.