Originally Posted by fariswm
I also shoot a .280 Rem and find that I see pressure signs about 2.5 grains back of max loads from most manuals in that particular weapon.
Since all .280 data is at or under 60Kpsi, and it's safe to load it to .270 pressures of 65K psi, I find that hard to believe unless you have a very tight tolerance custom bbl. I have seen a custom .280 that wouldn't take max loads. I consistently run 2-6 grains over book max powder charges in the .280Rem, and with my velocity, Quickload still says I'm hovering around 62K-63K psi. I'm running 139s/140s 3080-3150fps, and 150s/154s 2980-3015fps in a 24" Rem 700.
What are your velocities? Afterall, that's what counts when it comes to pressure, not the on paper max powder charge.
To answer the original question. R-22 is the cat's meow for me and most in the 7mm. 66grs and a 160 Accubond run 3080 in my 25.6" bbl, and get under 3/4".