204 is great on coyotes, but hell on fox. If you are going to shoot fox I'd suggest a 17 something. That's still no guarantee but your chances are better. Honestly I stopped shooting fox with any centerfire, even a 17FB, as there's usually too much stitching to make it worth while.

They say everything happens for a reason.
For me that reason is usually because I've made some bad decisions that I need to pay for.