DG1969,
SIerra lists 43.5 grains of RL-16 for 139-142 grain bullets in the 6.5 Creedmoor, for 2800 fps from a 24" barrel.
I’ve settled on ~43.7 grains RL-16 with 140s. Velocities range from 2755 to 2790s depending on bullet (140 Berger, 140 Partition, 139 Scenar, 140 ELD). That is a 21” Fieldcraft.
