FWIW there's a curve in 4DOF. I've always had good luck with 4DOF, but ymmv. Running a few bullets at the same conditions (5000 ft, 59f, 50% rh, 2800 fps, 7.5 twist, no wind, angle, etc) I got the following elevation corrections at 1200 yds: Berger 105 Hyb: 11.14 Berger 109 Hyb: 10.50...