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"Is 5.7x28mm an Effective Self-Defense Round?" Topic

7 Posts

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276 hits since 16 Sep 2020
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Tango01 Supporting Member of TMP16 Sep 2020 9:49 p.m. PST

"It might be premature to say that FN Herstal's 5.7x28mm cartridge ("5.7") is experiencing a renaissance, but the cartridge has done something that most proprietary-ish, specialized calibers don't do: Bask in increased popularity decades after its introduction.

Now, in addition to the Five-seveN pistol and the P90, a number of manufacturers have already committed to the 5.7 in the form of AR conversion kits and AR-based sub-gun builds. Most notably and more recently, however, Ruger introduced the Ruger-57, a reasonably priced but comparable pistol to FN's thousand-dollar Five-seveN handgun…"
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oldjarhead18 Sep 2020 2:24 p.m. PST

I don't remember who said it, but I re/was told "Never get in a gunfight without a gun that starts with .4 or ends in magnum", while the 5.7 is fast it is a very light round.

Tango01 Supporting Member of TMP19 Sep 2020 11:01 a.m. PST



14th NJ Vol Supporting Member of TMP19 Sep 2020 6:24 p.m. PST

Designed to defeat body armor, in CQB it will do the job if the operator knows they are doing.

pikeman66619 Sep 2020 8:10 p.m. PST

Hey, it worked great for the USAF heroes in Stargate, didn't it?

Tango01 Supporting Member of TMP20 Sep 2020 4:27 p.m. PST

Dude…! (smile)


chironex26 Sep 2020 9:57 p.m. PST

What kind of body armour is a DAMAGE REDUCTION round supposed to defeat? Padded bras?

YouTube link

Apparently the answer is L2 soft armour. Although it's not really about penetration there; if the 9mm is stopped its energy will still go somewhere, which will just as well impair the target.

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