Was at the range over the weekend and we decided to test out some “defensive” 9mm ammo on different targets. I do not know the practical application for whatever the results show other than the obvious impact, so take this at face value, since this was in no way any type of scientifically measured test.
link to post - http://vdmsr.blogspot.com/2013/07/testing-9mm-defensive-ammo-on-velocity.html