56.0-56.5 of RL19 will get you 2900-3000fps. powdr
Rifle is a Sako AV in .280 Rem. with a 22.5" barrel. Loading 140g Accubonds over 56.0 grains of R-19 yields 0.5-0.6" groups. Velocity depending on ambient temp. is either just under or over 3000fps. At 56.5g and 57.0g the group was starting to spread.
