i have killed them....
anywhere from 10 ft to over 500 yds.....a lot will depend on where/how you set up. i like to set up so that i have a good vew of as much country as i can, but if you set up in scrub brush, expect to get closer shots, but you better be fast! if you have one of the remote controll callers you can set it up then back away to a higher spot....most of the time when i am calling, i have spotted the coyote already and know where he is coming from, but sometimes one will sneak in from a dif direction. AJ