I agree with Howler and others stating that #4 buckshot would be better than 00 buck. Here you can coyotes with a shotgun if you wish to. Also here we have a coyotes night time hunting law that allows you with the permits to hunt coyotes at night. You have to be located near a lake or large opening during the winter months and can only use a shotgun under these rules.. Good Luck with your endeavor..