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Response to jimmy the one (Reply #57)

Thu May 2, 2013, 08:17 AM

70. Ummm, .223 JHP penetrates *less* in building materials than 00 buckshot or most pistol JHP.

Joseph Ledger (27 posts) An AR-15 is a "liability" in home defense?

Yes it's a liability, as most rifles; shoots thru metal doors, drywall, aluminum & even ~quarter inch steel. Unless they make .223 glaser slugs, HA.


Ummm, .223 JHP penetrates *less* in drywall and typical residential exterior walls than 00 buckshot or most pistol JHP, which is a big reason why .223 carbines have replaced MP5's in SWAT use.

In tests I've seen using drywall and realistic wall spacing, typical 55gr .223 JHP will be fragmented by the time it exits the second interior wall and will be stopped in the third wall; lighter varmint JHP (e.g. the Hornady 40gr ballistic tip or the old Federal 40gr JHP) will typically be fragmented exiting the first wall, though they arguably don't penetrate enough for defensive use either. Buckshot and 9mm/.40/.45 JHP will typically penetrate 3+ walls.

It is a fallacy in the extreme to take military FMJ designed for penetration, and represent *that* ammo as representative of civilian .223 JHP. .223 with midweight JHP is among the safest of all calibers from a risk-to-your-neighbors standpoint.

And Glasers? Seriously? 1992 called and wants its talking points back.

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