I will be hunting out west for the first time in October. Being from Alabama and having an altitude of around 600ft I am concerned about bullet impact once my rifle is shot in the higher altitude. Of course I will shoot my rifle once I arive in CO but my question is this. If I zero my rifle at 100yds at 600ft altitude what should I expect my bullet to do at 8000 to 10000ft? I know it will climb but how much? Our humidity in Alabama is also high right now it stays at around 70% or higher (90% here latley) so that will have an impact as well. I know from a short range standpoint not much will change but if I were to zero at 200 (like I normaly do) what would I expect as well. I am shoot a 7mm factory loaded Fed. Prem. with a 160 accubond.