So I went out and shot rocks on a side hill at 786 yards. I rested my harris bipod on the roof of the truck (it was the only vantage point because of tall brush on road) and dialed according to my dell handheld. My shot was over a foot high - 3 times. So I dialed down and hit the rock 3 times. There is no way my 168 gr bergers out of my 7mm RM are even close to 3100 fps - as was suggested by trajectory validation in the nightforce software (they are more like 2975 fps). And I was .5 moa at 100 yards. Could it have been the fact that I was resting my bipod on the hood of my truck?? Would that make your muzzle jump or throw your bullets high because of the "bouncy" surface? Does anyone have experience with this???