I've used Lupa, Peterson, Starline & Hornady brass for 6.5 creedmoor. For accuracy I use either Lupa or Peterson small mag primers with H4350. For 400+ yards found RL26 Starline or Hornady gets it done using Federal 215 primers. Today Temp 55* tested Lapua brass, 142 MK's, RL26 46.1 gr, CCI 450...