LOL, having owned a Colt 9mm carbine and an identical one in 223, it didn't take much shooting to know which one was a cool range toy and which one I'd stake my life on.
That said, I did search the house one night with a 9mm pistol and that's what I carry everyday, it ain't gonna bounce off. I just don't believe the benefits of the 223 carbine can be beat, if you're grabbing a carbine...
And there is never a doubt that 223 trumps 9mm no matter the case.
