4 1/2+ year old that should go 150"+

There's one 6 1/2 year old 4x4 that will only go 140ish on one of the tracts I hunt and honestly, I will shoot 'em if given the chance simply because we've collectedhis sheds from the past 4 seasons, but on all other tracts I want a 150"+ mature animal. Came oooooohhhh so close to a Booner last year and hope I can get 'em just a little closer this season. Only 2 Buck tags in IL, regardless of weapon choice, so must use them very wisely. Good luck to all of ya this Fall