I don't know if there is much difference between a coyote and a mountain lion, but my 204 will enter a coyote and not exit.I have hit them in the shoulder and in the head. The head shot exploded both eyeballs, had blood in the ears, and brain matter in its mouth. I did not skin it because the time of year, but did not find the entry hole.The 204 was supposed to be designed with minimal hide damage in mind, the bullet breaks into small pieces at that speed (4000 fps + or - 400 depending) and sends shock waves through the insides. Supposed to make a jello in there.
I had a 357 mag put a 3 inch hole in ones side though.It might have been a hollow point though.It was about 40-45 pound dog.I don't know what the difference would be between the two animals. Something to think about.
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