I recently bought a .260 Rem. and Nightforce ACTAR MOAR (minute of angle). I am new to dialing and would be very, very, grateful for some help. Sighted in the scope at 100, 200, 300. Here are my dial numbers before making the 100 yard elevation adjustment zero on the dial. 100 1.75 200 3.75 300 6.25 After I move the cap to set 1.75 to zero, these will be my dial numbers I believe. 100 0 200 2 300 4.50 How do I know from this data what my scope settings will be out to 500 yards given my muzzle velocity of 2,556 fps. and bc of .585 I ran a chart on my Sierra Infinity Ballistics Software but it only tells me drop and such without any conversion for the scope dial numbers at each yardage. I don't understand how adjustments change every hundred yards (ie. 1 click is 1/4 inch at 100 yards and 1/2 inch at 200, etc.) I think. So, how do I convert my drop chart based on inches from the Sierra program to dial numbers on my scope? Also, a graph I did says it will be moving at 1,900 fps. at 500 yards. Will I have enough speed to shoot this bullet out to 1,000 yards before it feels the effects of the transsubsonic barrier or whatever the speed is that causes instability dropping below the speed of sound. Please help.