I came pretty close to buying one the other day. I can't decide between .22 mag or .17 hmr...
Just depends on what you want to do with it. There is no question...the .22 mag will hit harder.
IMO...the .17 HMR is best suited for small animals. Raccoons being the upper limit. Yes, I know folks have killed coyotes with them and even hogs, but the diminutive round is being pushed way beyond its practical limit in those cases (again IMO).
Anything bigger than Rabbit (maybe fox and possibly bobcat) and I believe the .22 mag or .17 Winchester Super Magnum would be much better choices.
My .17 HMR is superbly accurate (out to a little past 100 yds.), but I've had quite a few 'crawl offs' with well placed thoracic shots on Raccoon and even some squirrels.
Just my .02 on it.