I bought a .17hmr out of curiosity, and was totally blown away by this amazing little caliber (looks like a necked down .22 magnum). It's a bit more expensive than a .22 but shoots faster, farther, and a lot harder than a .22.. You can actually see the splash when it hits the groundhog
I have a Mossberg bolt action, but my next one will be a Henry leaver action in .17hmr.. There were problems using the cartridge in semi's hopefully they can get what ever problem it was ironed out.. I have a Henry AR-7 that I carry in the trunk seat of the ATV, and would buy another instantly if it came in .17hmr