I have killed the crap out of varmints with a .22 Magnum prior to me purchasing the .17 HMR when it first came out. The .17 Win Winchester Super Mag , leaves the .22 Mag in the dust across the board. I like that, I had already sold my .17 HMR stuff and just stuck with the .22 Mag for bare minimum on Rockchucks and point blank Coyotes.