I will be going on an Elk hunt in Wyoming this October and am getting prepared. Can never start too early right? I enjoy and practice shooting often and am very confident in my ability out to 600 yards in field conditions. However, being in Texas, I practice at around 500-1500 feet in elevation and will not have the opportunity to practice or test at the elevations I will be hunting. My question is this: Assuming a long shot opportunity at 0 degrees, can i simply use the data from the ballistic calculators and trust the adjustment information it provides for higher elevations or are there variables other than physics that must be factored? Advice from those which have experience with this is much appreciated!