I shot at and missed a deer at 810 yards. The deer I intended to shoot was a nice buck. I dialed the trajectory and dialed the windage. I was looking at him and my level. Just as my brain told my finger to put the last amount of force needed to break the trigger, the deer began walking. I killed the doe standing behind the buck that I wanted to kill. I knew that the 7 RUM would probably get her too, I had a tag and did not care. As it turned out, I only got her. When shooting long range, stuff happens. You just have to accept that fact or refuse to shoot long range.