Home Forums Reloading Varmint Rifles What primer for 6br?

Either one.

I generally use 450's or Rem. 7.5s. The "old school" Lapua cases and 30grs. ARComp and the 87 V-MAX.

Gradous built Stiller, 1-8 Brux. One-holer all day long; you can mix n match the BR4, 450 and Remington, it doesn't care, they'll still go in the same hole.

I'm not much of a 243 guy but that BR flat out shoots that load and wasn't even built for it.