I like my .17HMR but it is a noisy fecker and bady affected by the wind, the ammo's expensive, and barrel wear is an issue due to the number of rounds you'll put down it and the fact they're so fast and copper coated!
I use my HMR for foxing and the odd rabbit, but only because I have a .22!!! The HMR is an excellent choice for small game and the odd close-ish fox (up to 80yds), and it's my favourite gun simply because it's a small quick and flat round so I can just pull it up and shoot. As it fragments so easily nothing ever seems to run or twitch, and its doesn't bounce of hard ground li