No doubt that a 223 is a great coyote round but after using my 204 Ruger on a yote my 223 will be collecting some dust. That 204 realy impressed me. Thats a good idea carying a 357 with you when you take your 17. I read about this guy that was calling and felt something breathing down his neck, he turned around to find a mountain lion growling right in his face. I wouldnt want to be in his shoes.