I wouldn't think he is 5yrs old yet due to the lack of mass on his rack. Typically bucks start to put on good mass from 5yrs old and on with good nutrition and genetics. I would find out if he is a roamed or a homebody buck. If he is a homebody..take care of him for another 2yrs and shoot him when he is 61/2 he will prolly score into the 160's or higher with good nutrition n supplements u put out.