text:  Well, I've tested this exact thing that you're saying. I actually built walls. We had a series of walls of drywall on 2x4s and had three walls. The 9mm, every 9mm round we tested went through all three walls and exited through the T111 siding we put on there. It would exit your home. We never, ever got an AR-15 to go through the third wall, ever. Okay.