If there are a lot of mature bucks around an area rattling works great. Do not tickle the horns, crack them good for about thirty seconds then be ready. If a big buck is around he will not waste any time coming in. Wait fifteen minutes and rattle for thirty more seconds. Remember only works if you are in a area that hold mature bucks that fight. Do not move for fifteen or twenty minutes, my own inpatients has cost me a couple of nice Blacktails.