.17 cal rimfire
.17 centerfire.
I'm imagining a Daisy pellet gun would do nearly as much damage
No, you're wrong. .17 gr (about, the cal, a coincidence)@ about 2550 fps generates some energy, in the 250 fps neighborhood.
Not you brothers daisy. Makes a mess of ballistic gelatin.
Ah ok. I saw an "actual size" pic on the cover of American Rifleman, man that thing was tiny. I'm curios as to how they act, ever shoot one?