I grunted in a mulie for a buddy of mine 2 years ago. I saw him in the distance and closed in, at about 75 yds I started to grunt. He ran towards me about 20 yds and started thrashing the bush with his antlers. My buddy shot him at 50 yds. He wasn' t a brute, but it does work during the rut. I' ve had does and bucks walk under my stand before the rut (late Sept, early Oct) and they were making grunting noises. JDinAB