I lost almost exactly 200 fps (16" vs 22") with my 120gn loads. My handloads are definitely on the warm side. I am still within acceptable fps/energy parameters for whitetail out to 400 yards. Interestingly, I did seem to lose a greater ratio of FPS with a heavier bullet. For example, I loaded some 165gn Norma Bondstirke and they are averaging 2441 fps at the muzzle but got really good ES/SD numbers w/ 48.8 RL19 (compressed load). While slower at the muzzle they retain better velocity, energy and drift at 400yds then the 120s. Kind of fun the play with the math...
