Even though the samples are too small for drawing any conclusions, it is a thought provoking exercise.

Bronko's suggestion to add an 80 grain load to the mix makes sense to me.

I like velocity data because it's fun stuff to know. But in the long run I'm interested mostly in accuracy. I know it can be a pain in the butt to shoot for long range group accuracy when working with a chronograph. By any chance were you able to gather groups size data also?