132 days old, giving say, an 85lb birth weight, then gaining 3lbs/day from there, which is generous to say the least, would make him 481. For being that young, I can't see him being that heavy though. But he is a mighty powerful calf.
he is a nice calf heck he is bigger then anything we get for the fair ( we dont get to choose them which is a downside) we will be getting our beef here in october just ordered them hope you post that weight soon