I live in alabama and the elevation is like 115ft, so when i come into colorado we stop by our favorite shooting range and sight in the rifle at about 7700ft. So im dead on at that elevation. However, the unit we're hunting ranges from 10,500-13,500ft in elevation depending where we are at. Is that going to be enough of a change that i would need to aim slightly higher or resight in my rifle again. i know there are alot of ballistic factors lol please don't rip me a new one.