I remember in John B's article he wrote about the 6.5 CM he got a couple of boxes of Hornady factory ammo (120gn and 140gn) and it had the load on the box. Hornady loaded the 120gn with Varget and the 140gn with H4350. I guess Hornady would have tried stacks of loads to test and they ended up chosing Varget for 120s.