This one's directed specifically toward Bryan and Doc.. I've got a 300wm and a load for it shooting 215 Hyrbids @ 2900fps in an 11-twist barrel and am at 2000ft elev... The Berger twist calculator shows marginal stability/compromised BC in these conditions, through my particular barrel..I will mention I use an Applied Ballistics KESTREL to calculate drops and solutions** So..... Question for you guys is, what BC does a guy go with for the most accurate "outputs" in this-case? I have intentions and location to shoot 1300+ yards and I know (already) this compromised BC thing is going to throw a screw into calculating a proper solution out-there. I'm wondering, does the Applied ballistic program in these Kestrel's have anyplace (that I haven't found) to input multiple BC's in cases like this for say: different elevations where a rifle/twist would go from being marginally stable at 2000ft, and use (for example, .332BC in THAT condition as the calculator may suggests it would be in an 11-twist barrel) then input different (possibly the TRUE BC) for another elevation under proper-conditions (say 7000ft) where the bullet be stabilized properly (there) in this 11-twist barrel? Is the program able to do something like that and adjust itself and it's firing solution afterward for changing environments and conditions everywhere in-between the 2000 & 7000ft inputs? Seems the Kestrel works that-way with your "two-temperature" (muzzle velocity) portion of the Program. Wonder if it could be done with this stability/barrel twist/compromised & optmized BC thing too?? Or does it, and I not realized how to correctly "input" the information to see that?