Does anyone here think that's impossible ?
Of course it's possible, but how realistic of a scenario is it? Any bullet capable of taking down a crazed 300 lb guy is also capable of over penetration. I can easily find plenty of videos/stories where an under powered bullet fails to perform, and you can't find one instance where an innocent is hit after the bullet pass through a bad guy. It would seem to be a logical conclusion that under performance is a more realistic problem vs. over penetration.