RE: beginning of rut in MO
I hunt in Knox county and have seen bucks chasing does aggressively in mid October every year. Last year I saw the biggest buck I have ever seen and three other smaller bucks chasing does everywhere right around October 15. I save a weeks vacation time to take during the last week of october just to hunt before rifle season begins. I use scent at that time, usually the estrous scent wafers. I dont know if I would try it now, but light rattling does seem to get their attention right now, although I havent been lucky enough to call one in close enough to shoot yet.