From IRC:
16:43 <+wizardpc> Things I learned today: .300blk subsonics won’t penetrate soft body armor
16:43 <@daniels> really
16:44 <+wizardpc> but the body armor will deform about 4 inches into “whatever” is behind it
16:44 <+wizardpc> so, ribcage broken in many pieces
16:44 * oddball is glad he didn’t go black friday shopping with wizardpc.
This is where I learned that, by the way.