I have a Savage .17 HMR (just a cheap combo from scheels at $269) and I also have a .204 Browning A-Bolt.
I love shooting them both.
My thoughts on the .17: I love using it for squirrel hunting. Although, it is a little loud. It sure reaches out and touches them. A couple years ago, I was out the last day of squirrel season and looking for some early sheds and I came up along a fenceline. About 125-150 yds away there was a group of 3 oaks in the middle of a cornfield. Upon further investigation, there were bushy tailed tree rats everywhere in those trees. I ended up shooting three of them with 4 shots at 125+ yards!.. I love the accuracy of it!! As a predator gun, I will never use it again. The very first night my buddies and I went out moonlight yoting in the snow, I ended up calling in 5 coyotes. I shot at 3 of them, all within 40 yards. All I had at the time was my .17 HMR. One of the yotes I shot at 30 yards, then it ran and I shot it again and it dropped like a box of rocks. It was on the other side of a deep stream, so we had to walk a long ways to get to the other side. I dropped my rifle off at the truck and my buddy brought his 10/22 along, just in case. When we went to get the yote, he jumped up and took off running... Never did find him or any of the other yotes I shot. Although, I believe I probably killed them all, the HMR doesn't leave a big enough hole for a good blood trail and the snow was hard/frozen from a freezing rain, so i couldn't follow their tracks.
.204:
The sweetest/flattest shooting rifle I've ever shot. I've only taken one shot at a coyote with it and shot over it's back (b4 I trusted that there was basically no drop with it).. and I have blown the heads off many rabbits with it. It also turns starlings and pigeons into feather dust..haha!! The main downside to my .204 is the ammunition is pretty expensive and you can't just go to walmart to buy it.