These folks talk of "stopping power" as if any conceivable round would
out-mass any sort of onrushing person. The person blown 7 feet
backward by a handgun (or even shotgun) is a myth of the movies. I can
get a far better kneecap or shoulder shot under any conditions than I
can "stop" another person. The extent of injury or loss of life may
totally incapacitate an attacker, but the actual round never will of
itself "stop" the attack and the onrushing momentum may well carry for
some considerable space despite the attacker's having been
incapacitated. Unless you have access to and house space *and elbow
room*  for pretty sophisticated heavy stuff. The sort of stuff the
average householder neither wants, understands nor can afford nor
could use effectively. The thread began with fairly practical
household considerations, not Charles Bronson or SWAT teams. Don't
fantasize too strongly about meth-heads chasing Arnold Schwarzenegger
through pounding trip hammers; that's Hollywood myth. A shattered
kneecap equals a non-functioning leg. One-legged attackers aren't very
proficient. Hint: for a bedroom scenario, aim just at prone level.

Talk to your local police or federal agents about the discussion of
shot placement vs. "stopping power." Placement will win every time.
And return to the thread's premise of conceivable, practical household
scenarios.