These ballistics are not pellet gun ballistics Which are (in my country) 550ft/sec with a .22 16 gr pellet. The stopping power of the 22 in question is I agree very low. However I calculate it would penetrate about 13" of ballistic Gel if there was no bullet expansion. According to my notes a .22 16.5gr pellet needs 245ft/sec to penetrate skin and.355 round nose 113gr bullet needs 190ft/sec.
An alternative penetration formula give 11.8". Still good enough to make your eyes water
