Starting velocity,ain't arrival velocity,thus the penchant to add BC to the equation...to retain same.
Hint....................
You aren't going to be able to tell the difference in terminal velocity between any of the 75/77gr bullets out of a 10.5" barrel at game ranges. There's likely more difference in velocity between your individual rounds than between bullet types. I've seen ES over 70fps with a SD of about 20.
