I'm finally to a point now, being newer into hunting (11 years now), that I've taken enough of them now, that I'm now OK with "risking" trying the .17 HMR for Coyotes. I have no doubts it'll get the job done for my usual sits where I call them in to like 25-45yds.
Super accurate lil Savage 93R17 with the Heavy Barrel. Farthest Ground Squirrel to date was been 104yds LRF'd off those ultra lite tent-pole style rapid-deploy Kwik Stix.
LOVE making Rabbits do backflips with headshots at minimum 80yds away!
There was one time, heading back to vehicle, on an outing for rabbits... nearing the vehicle, had an offhand opportunity on another Rabbit at about 60yds. And ya know, since hoofin it back to truck... got some pulse goin on and such. So... since standing freehand, I allowed myself to aim it more toward the body just to increase chances of connecting...
And when I let her rip? ...
Ugh... The bullet must have entered juuust below the diaphragm... because it left the diaphragm intact... but completely gutted-him.. and split the pelvis wide open! So.. much to my cringey dismay... there he was, with just his front paws trying to pull himself toward the rabbit brush. So I had to run over there and finish it by hand. Which is never a great feeling. BUT.. I convey all that to give some "color" to how much damage the round CAN actually do.
Also, in my initial testing of the cartridge before using it on game, I shot a TNT Green 17gr at a piece of Mild steel tubing, diameter something like 2" with approximately 1/4" or 3/8" walled tubing.
At 100yds, the projectile pierced cleanly thru the first wall of the tubing. (This tubing piece I found at the location, looked like it had been shot at with maybe cowboy action type rounds. Was a lot of larger caliber dents on the metal in places, so figure 44 mag cowboy loads which are a softer lead, if I recall.)
I also found a Mule Deer Scapula bone, and out at 100yds tried to aim for the thickest parts of it. Went thru no problem. and that bone? Wasn't terribly old and sunned/weathered either.