Anyone who still believes that a handgun bullet is capapble of knocking down a man just by the force of the bullet impact can shoot something much lighter than a man and see what takes place. Shoot something like a section of a log -large enough for the bullet not to pass through so all the energy is contained. Does not have to be that large or heavy to prevent total bullet penetration from most convetional handguns. Set it up on a table or any surface where the entire base can rest flat. Shoot it and see how far the log moves. If a 45 or any other handgun can truly topple over a man just by the force of the bullet strike - the small log should be thrown quite some distance.
"One of the penalties for refusing to participate in politics is that you end up being governed by your inferiors."