I've never tried this round either. Though about buying one, but already got 22mag. Heres some numbers; at 50y, muzzle velocity 2,215fps, 185ft-lbs energy, 17gr ballistic tip bullet. Sounds explosive if you know what I mean. Yeah you better make them all head shots, or find a recipe for squirrel burgers. With well placed shots would make an excellent choice for little critters, In my opinion better than the 22mag, because of flatter tragectory.