As a rimfire round overall ,the 17HMR IS superior to a .22 mag
Not in a 5 mph wind.
Swampy.
Actually shoot the two rounds SIDE BY SIDE in the same wind conditions.
It's no contest- the 17HMR drifts less. About 2/3s as much.
It's not even debatable to someone who's actually done it and honestly compared them.
BTW, every source of Ballistic data backs this up.
Which makes sense, because it's true.