Sure hope someone can help me with this, got me stumped.Rifle is a Rem 700, 243 win , 24" bbl, Leupold mk 4 6.5x20. Hornady 105 amax chrono'd @ 3000 fps. i zero'd at 100yd and then shot at 200, 300, 400 and 500. JBM shows -2.9@ 200, -10.7 @ 300, -24.1 @ 400 and -44 @ 500. I went the following adjustments to hit point of aim. + 6 clicks at 200 ( 3") + another 8 clicks at 300 (9"). + another 12 clicks @ 400 (21"). so far my results track pretty close to data for that bullet at 3200 fps, which I am definatly not making. The real surprise came at 500. I only needed 6 clicks (7.5") to hit POA. When I should have needed approx. 16. I did this again, starting with the 100 yd zero and back out to 500 with exactly the same results. What am I missing? as much as I'd like to ,I don't believe I've got a magic rifle. Thanks in advance for your help.