A couple weeks ago, I sent in a request to JBM for an enhancement to their range cards. I use the Nightforce NP-R1 Reticle, shown below. It has 40 moa graduations (10 above the crosshair and 30 below the crosshair). I normally build my range card by repeatedly running the ballistics programs until I figure out the exact yardage that each of the graduations represent. I set my zero so the top graduation (10moa above the crosshair) is set for 100yds.
Well, JBM made it easy with their new range card. They call it a 'constant drop' range card, as it will give it's output for a specified constant drop (every 1/4moa for example). I ran it for my 338Allen mag, 7480ft elevation, 3270fps,10mph wind and a constant drop of 1 moa to match my reticle. My zero is 731yds and viola! the following range card magically appears. The little note at the top of the rangecard is from the notes field at the top of the input screen. With this range card, I can shoot out to a mile without touching the elevation knob.
If some is good and more is better, then too much is just right.
My mind is a raging torrent, flooded with rivulets of thought, cascading into a waterfall of creative alternatives