I have many shot up many pounds of H4831, reg and short cut through my 270's. I always start there.
Have successfully used IMR 4350, 4831, Rel 22, 26,and Ramshot magnum too.
H4895 for pleasant low recoiling loads.
I have 16 pounds of IMR4451 that I have not even started using. I know it is discontinued, but it will last me the rest of my life if I find a good load.
