The problem I have with the Marshall & Sanow database is that it doesn't make any allowance for why a particular bullet had a one-shot stop, or rather why a particular bad guy stopped after being shot once. Did he stop because of severe physical trauma and simply could not continue, or did he stop due to a low pain threshold and non-life threatening hit to the arm that made him retreat? M&S classify both of those instances equally as a one-shot stop.

It may be worthwhile to read a bit about Dr. Martin L. Fackler (retired Colonel in the US Army's Medical Corps) before dismissing his work as that of a "jello-junkie". But that's just my opinion...