This is some misinformation with a few folks around here
about hand gun caliber and stopping power. I think most
would do well to read "Dr. Fullers ballistic study". It can
be accessed on the web by keying in the above.
Among other things, hand guns don't lift or knock people
over. If this were so, simple physics dictates the shooter would
be knock back when dischargeing a round.
Fact: the energy expended on a target in ft/lbs is equal the
the guns recoil in energy in ft/lbs.
Fact: penetration is far more important than expansion.