Way back when I hunted for pelts, I took a fair amount of fur with the 223. While it worked fine in most cases, it would do strange things every once in a while. A broadside shoulder shot would become an intestinal unzip. I would blame these anomalies as a bullet failure of some sort, which it may have been.
My favorite dog caliber however was the 22-250. Instant death with a rip in the hide to prove it. Oddly, my 17 remmy was nearly the equal of the 22-250 without the damage. Only had one runner and that was a 400+ yard yard shot in a fairly stiff wind but the dog was recovered.