Re: reloading for .308
Your right velocity has nothing to do with accuracy. I don't know what twist your barrel has but if I was in your shoes I'd be looking at 168 gr A max or matchkings, benchrest primers and a starting load 10% below max of Varget, in cases that were trimmed, flash hole deburred, primer pocket uniformed, case mouth chamfered and weight sorted. Shoot about 10 of each in assorted charges incresing about .5 gr at a time and then pick the best group and work the charge up and down a little see if it tightens up any. After that start playing with the length run the bullete out to about .010 off the lands (providing your not at max load) and just find what works in your gun . There all different. But thats how you start. It seems like a lot of work but when you see those groups shrink below .5 in it's worth it.
For what it's worth I never crimp and only neck size and single load . Mines is a single shot.