I think his ears shrunk!
I wouldn't have a clue on the score, not many of them where I live! Keep the photos coming though, I really enjoy them.
I think this is the same buck as the picture with a rear view. I don't know anything about scoring goats but If I could ever get a tag I would shoot one like this.
As Mike says with pronghorns it's all about four things; prong length, mass, mass and mass.
He's fairly tall, but has nothing for mass or prong length.