I sighted in my rifle this afternoon at 1000yards and was wondering how shooting in the morning time vs the afternoon would effect the point of impact? I know there is a benchrest saying "lights up sights up" and I find this to be true, the later it got(setting sun,lights down) the bullet seemed to stay up better, taking less clicks that i though it should. I have never shot in the early morning time to see how it would effect the bullet. I have a hunting trip in the morning for whitetail deer and was looking for some advise on this. Thanks for your help.