[ToddT]

Hmm, if i remember right small designed to be bullet proof don't real protect very well against explosions, and vehicles design to withstand/survive explosions usually aren't very effective against bullets(the potent ammunition). I do not remember the specifics but in either case the rhino material would help. As the demonstration
with those cinder block buildings illustrates. The Standing building may not be safe occupy afterwards, but if you were in it in such a situation you have the opportunity to make it out in one piece, versus being buried(possibly alive) in the ruble of the other.