I bought a Hatsun Jet11 pistol, 25 cal to carry in my pack when I bow hunt. After a little work on it, it shoots incredibly well at 15 to 20 yards,one ragged hole most of the time. It shoots Hades and Fx 34 grains about the same. the 34 grains a a touch quieter than the Hayes with a Donny Fl on the front. FPS at 15 feet is approximatly 560 FPS. Is this fast enough to cause the Hades to expand in a squirrel? If not I will shoot the 34's, they have a bit more KE than Hades. Any help would be appreciated.