If you are 100% sure you are putting in all the correct numbers to the ballistic program from environmentals and elevation to scope height and bullet data and not getting the right data then I would run a tracking test out to at least 10 mils(marks every mil) or 40 MOA(marks every 5 MOA) at 100 yards and see if you start to see any variances as the elevation is dialed on. A 200fps difference in chrono data and dialed on data reversed engineered is showing an issue somewhere.