I got him at 285ish as is, if those backs get a little longer he could hit 290. Great 3rds and good width but everything else just falls short to push him over 300.
That said I will be flinging an arrow if he showed up in front of me on either of my two tags. For one tag he is a really good bull, the other he is on the smaller side, but its a tough hunt without a lot of opportunities so you got to take advantage of them when they come especially with a bow. much smaller and I would probably let him walk.