Run the numbers. Typically the factors don't really mean a miss until you start getting past 600 yards.
This year at Quemado, I was hitting the steel out to 300 yards, consistently without changing the zero, from Arkansas at 240 ft to where we were shooting at around 7500 ft. I did not think to check on paper, just shot. Using a 7mm-08 improved and 120 gr ballistic tips. Maybe Dennis will chime in with the actual distances. miles
