Suppose someone shoots you with 12 gauge 00 buckshot shotgun ammo in the chest from 5 metres or so. Of what I've understood, without armour you're most likely dead but with a BP vest you'll probably live. I can imagine it hurts anyway, at least if you're wearing a non-rigid vest, but how much of an impact would it be? Enough to break ribs? And wouldn't it hurt at all if the vest was rigid, would it just knock you back a bit? Why do I ask this on a bass forum? Well... yeah.