Find where the does are bedding and feeding, wait for the rut and set up on the does!! One, You do not say how big the piece is the buck is bedding in and two, very tough to kill a big buck in his own bedding area. Other than my first choice, I would find where he is exiting this area and set-up there to kill him. Walking in 75 yards from his bed, you will never kill him as he will know everytime you are there, unless you enter hrs. before first light or have heavy winds to cover any noise you make. Shawn