Coyotes that get "dumb" at night....we don't have those around here. One thing regarding bullets, do you just want them dead or are you trying to get some nice fur {mount or sell, etc.}??? If you do want the fur then high explosive nuclear C-4 varmint type bullets are probably not what you want to use. For years I used full metal jacket bullets and was happy, then all of a sudden and without warning they quit making them accurate enough to actually hit anything. The more I use Barnes TTSX 62 grain .224 bullets in my 223 the more I like them. They will pass right thru a coyote. Just about everything else, even BTHP match bullets make 'em look like they were pi$$in' on a claymore when it went off.