I'm relatively new to muley hunting and have lots to learn. I found this forum, and just started yesterday reading David Long's book, so hopefully I'm on the right track. I shot my first muley last year on the last day of season, an old 3x4 probably on his way down. We hunted hard for 6 days with temperatures topping 80 degrees in the high country and then I ended up shooting him in the desert below. From what I've seen and learned so far I'd say one of the most important factors is being really familiar with your weapon. Long shots under difficult conditions are pretty common whatever you hunt muleys with. I love shooting so I do lots of practice in the off season. It really pays off when the adrenaline is pumping and your mind is running 100mph to have the muscle memory and confidence to make a good shot.