Well, Boys...I am not a diehard varmint or anything hunter. In fact, before I got my Ruger 77/17, all I did was upland game or wasting .44mag ammo. Of the dozen or so guns I own, the .17 is without a doubt the most fun I have ever had with my clothes on. Will it kill a coyote? Hell yes. will it kill a grizzly? If you put it in his ear, maybe. Who cares? There has never been one gun for everything, and there still isn't. But if you want to put stretch marks in the fun zone, the .17 is a sure bet. Last weekend, I spent half a day shooting sage rats. It eviscerated 90+% of the hits, several landed in two distinct pieces. You can call it what you want, I say adequate. Did I hit every 200 yarder I took? Hell no, but I hit enough to know it wasn't the gun's fault. I will try it on coyotes, nothing larger, and I will look into a .223 or maybe a .221 now. But my love affair with the .17 is here to stay. You won't be cheating on your centerfire by spending some time with the hummer, but that may not stop you from feeling guilty about having that much fun with it......I can live with the guilt.