deerhunter1224,Depends on what you are shooting,with 50/40 200 gr Shock Waves and 150 gr app I cross up the line of sight at 25 -2 inches high atr 50 3 @ 85 back across the line of sight @ about 130 or 135 and 2 inches low at 150. at least that about what I figgered out from putting the the target at different ranges.Lee