If you have bucks that size (age) you'd better learn to do all your scouting and setting up hunting sites in the winter. All your doing scoutting now is letting the bucks know somethings up. ONCE THEY KNOW YOUR THERE IT JUST GOT 50 TIMES HARDERTO HUNT MATURE BUCKS. It only takets a time or two of buming older bucks. They stop moveing at all in the day light other than the rut.
If you want to kill bucks of that cal. you can hunt the like doe's and 1 1/2 old bucks.
GOOD LUCK WISH HE WAS ON ONE OF MY FARMS.