I'm more of an F-class shooter, but I shoot from the bench using a .308 free recoil. These things have made my score go way up.

1. Sort cases by weight, but even better by water volume.
2. Sort bullets by weight.
3. Use a good seater die like Redding Competition die or Forster. Better yet get Wilson dies and arbor press.

I use a Lee Collet neck die only for sizing the neck only, it is fast but it can still take me up to 2 hours to load 50 rounds for a match.
Most BR guys will Full Length resize every time though for more over all consistency.