15 Yards and you didn't shoot that bull?
You either do it for a living or your an elk hunting God.
I don't know what is considered a big bull in Nevada but in the three states I've hunted for elk, WA, CO, OK, I would have done my best to put that beautiful stud on the ground.
Sorry if I come across as brash. On the plus side you got some truly fantastic footage and maybe he'll be running around making carbon copies of himself. If you ever need a back up shooter to come and shoot those little cull bulls
let me know.
BTW be sure to post pic's of the one you do harvest b/c if you passed on that one I can't wait to see the one that doesn't get away.