Depends on what you are shooting and how far. The 300 WSM is amazingly versitle. Out of my Savage 12 BVSS, I shoot 190gr Bergers behind Reloader 19 and use Federal Gold Metaal match primers. I worka little bit to fit my cases to the headspace length and seat my bullets near the lands. For this work, I get .5" 5 shot groups at 100 yards.

I use Forster Bench Rest dies with the Micrometer seating die. I weigh every round.