I think knowing your limits with a gun is as important as it gets, if you do not you can not hope to make bullet place.
I have a 17hmr and with 17gr ballistic tips, it does wonders to tame feral house cats
i have been told that with fmj's or hp the work well on coyotes, have a 204,243,25-06 for those purposes.
I talked to a man at Cabelas the other nite that says he has killed several hogs wit the 17, says the fmj will shoot through a hog (never did tell me what size hog)
i do believe that hogs are a lot easier to kill than most people think but the 17 is out of MY limits for hogs.