Could you run an example with that formula, I can't make heads or tails of it for some reason.
Convert a .680 G1 BC to a G7 BC if you will.
I've got two programs that will convert the BC's, RSI Shooting Lab is the better one http://www.shootingsoftware.com/
Oehler Ballistic Explorer is another.
MV is muzzle velocity the way I've know it. Max, where the hell are you? Come answer this one! [img]images/icons/smile.gif[/img] Mach number abrev... is ???
Blaine Fields has a program called "Precision Shooter's Workbench" that uses a "deceleration constant", or DK. It allows you to use the published BC and your MV, you just change the DK number to modify the trajectory curve independantly until it matches your drops. It works very well. http://www.precisionworkbench.com/2.htm
The Exbal Palm program has a sight in condition page, and a field condition page to deal with altitude, density altitude, temp or MV changes. There's another way to skin this cat though. Compare the bore line drop at your conditions before you leave (on a ballistic program), verses the altitude at your hunting location to see how far your 100 yard zero will shift.