I've never hunted squirrels with a pellet gun. That said, I'd suggest that the squirrel did't run with the first and subsiquent hits IS a reaction.
Thirty yards out and 50 feet up seems a very long shot. At that range I'd think velocity loss would be significant.
I've READ that supporting a pellet gun does change point of impact.
I can tell you that a .17cal will kill a 10 pound soft shell turtle a 8' DRT.(Body shot)
Just my $.02.
Last edited by websterparish47; 01/17/17.