Not John, but have some experience with the .17.

To me it kills about as well as the .22WMR and at longer distances. Bullet selection for the task at hand is important.

It's a great hog killer with the FMJ bullet. I've seen a bunch killed with it, have killed a number myself.

I've posted this before. A good bud has a way of clearing a hog trap with his cheap little Savage .17. He eases up on a pen, not too close so they get to running around, close enough so they just look and stare. He finds a POI 1" above a line he visualized between their eyes and at midpoint. He lines up the POI to clear the pen wire and lets rip. Dead hog, eye's popped out on a stem. Weird looking. He waits for the next opportunity. He kills them so quick, the others don't seem to get that nervous. I've seen him clear a pen/trap holding a number of hogs, one at a time.

At that range, I'm not sure .22WMR .17HMR, or even .22LR would make that much difference, just that the .17 can be pretty versatile with the right bullet.

DF