BTW, I did buy the 4.5-14 too...I generally buy AO scopes as well, but I do not miss the AO at all and have seen no issues shooting long range without it. I did have my zero set at 200 yards as well.
Mine reads: 7mm Mag 168BRGR VLD 2880FPS 1000ft 40F 100yds 1/4 MOA
In looking at it, I was actually surprised that 40 degrees is what I used, but that must have been what I calculated as the average temp over the months I mentioned. I do not remember what I used for humidity, but I know if you search for it, it is easily found online.
I have not seen any major differences when shooting in temps colder than what I have mine calibrated for, but I am not shooting for groups either. I have shot steel at 300, 400, 500, 600 and 700 yards, all of which take 1 shot to hit the steel with no wind. The 300-500 steel plates are 5.5 inch plates and the 600-700 yd plates are 10 inches.
Mine is mounted on a 7mm Rem Mag CDL Boone and Crocket. I have bedded the action, floated the barrel and added a timney trigger to the rifle...all of which has helped with the accuracy for me.