I was thinking the same thing. A damaged main beam would look pretty nasty with blood and such. Also, it was a broken beam the brow tine would be similar to the other one. He might have had an injury on the opposite side of his body in the past year that caused it. That or it could be genetics.

I had a buck I arrowed three years ago that I never found. He showed up the next year with a semi deformed antler due to the wound. Then last year it started looking closer to normal. I hope to see him this year with a very nice rack. Last year he was about a 150" so I'm hoping he's close to that again!