looks like a high 140's possibly lows 150's class book looking from the angle. Scoring on the hoof is usually 3-4" within approximate if you do it often. On our lease we have a 145" minimum, anything under that is a hefty fine...so you need to score on the hoof pretty good. I think Buskcsore is within a 10" +/- margin.. by no means dont go to panel with it. Only way to do it is by hand to be accurate, then again you will have to shoot it first.