I envy the weather! I shot a Smallbore Prone match on Saturday, and the match director brought out box fans because it was so hot!! (and humid!!!)
I used to shoot 1000 yards prone with a sling, one of the few sling shooters, as most of the shooters were F Class guys. One match my scope mount got loose. Before I figured that out I was cranking big windage changes trying to stay on target. After I removed the scope, tightened the mount screws, and reinstalled the scope, I never got on target again. One thousand yards is a God Awful distance and a little error, and you are off the target. It is the lucky shooter who arrives on the 1000 yard range with some estimated short range zeros and hits the target. Pit pullers got so frustrated by shooters who blasted an enormous amount of rounds in the sighting period, and record period, and hit nothing, that the Match Director instituted a limit to the number of allowed misses.
I know one range, because of encroachment, they will spend lots of time and coaching getting you on at 600, then out to 1000. But if you miss the target once at 1000 yards, you are DQ'd from the match. That club wants absolutely no bullet holes in someone's roof !