A deers ears measure roughly 16-17 inches tip to tip. Look at your picture, that bucks antlers are clearly outside the ears and the ears are lying outstretched. That bucks inside spread is roughly 18 if not 19. Outside he's over 21 inches.

I don't care what he scores, he's impressive at 3.5 and I wouldn't hesitate. That's me, he'd be my best, someone else better than myself could let him grow, more power to you..LOL I'd be shaking in my camo.