Earlier quoted context omitted.
> the AR-15 is impractical gun for both home defense (Too long to for hallways. Too powerful for drywall.) 1. Actually, the .223/5.56mm round has less penetration in residential[1] that most handgun rounds due to its tumbling characteristics. 2. I'd say the AR-15 is impractical for home defense due to its stigma of being an evil black rifle, and that it seems like "overkill" to uneducated people. That's a shame, due…
Mind explaining what you mean by tumbling characteristics?
Contrary to popular legend, it does not tumble in flight.