I have copies of the video done on Personal Defense and I think Guns and Ammo programs with the .223, 9mm and 45acp shooting through 4 standard 2x4 sheet rocked walls. 9mm and 45 go through all three sheet rocks walls, both sides and exit the fourth wall with sheet rock and siding on the back side. .223 barely got past the second wall and small fragmented bb style spatter hit the third wall.glbedd53 wrote:I would like to see the evidence that .223 won't over penetrate. Or that a 9mm penetrates more than a .223. Before there got to be too many neighbors we used to shoot at a 1/4" steel plate at my in-laws house. The only handgun round that would so much as even dent it was my 44 mag. Everything else, even the .357 only made shiney spots on it. My Mini-14 punched clean little holes every time even at about 100 yards. The steel plate laughed at the 9mm.
Gary