My favorite coyote bullet for the 223 is the 50 grain VMax. My next favorite is a 52 grain HP. I've also used 55 grain VMax's and 55 grain SP's. Any of them will do the job. I don't save fur, but I don't get off on blowing huge holes in an animal either, so I prefer a bullet that doesn't leave a big hole in what I shoot. That is why the 50 grain VMax is my first choice.