I have one of the .17 hornadys also and I love it,
but the TINY projectile looses its energy far sooner
than the .22 mag.
At max ranges for these type of cartridges,
the .22 mag. still has the edge.
Remember the 5mm Remington mag?
It was far superior to the .17 Hornady and it did not live long.
What the .22 mag gives up in Velocity, it gains back
in retained energy. I would not count the .22 mag out
just quite yet.