[MHGinTN]

There is Youtube footage of AR rounds and wall board.

[RC one]

here's someone who tested the 40 grain V max against drywall. It looks like it would be pretty comparable to a shotgun for home defense-V-Max bullets started fragmenting within the first sheet of drywall and completely blew to pieces on their way out of the second sheet, leaving dramatic craters. The fragmentary nature of the round at high velocity would be absolutely devastating at close range IMO. Shot placement would be largely irrelevant.