subsonic .223 rem

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Wollychop
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subsonic .223 rem

Post by Wollychop » 26 Nov 2008, 08:17

Is it impossible to load a subsonic .223 that will reliably cycle an autoloader like an AR15 or Sig 556?

I was thinking something in the 100 grain range.

Anyone have experience with this?

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Re: subsonic .223 rem

Post by flyingirish04 » 26 Nov 2008, 08:18

Great question. Bump.
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Esteves
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Re: subsonic .223 rem

Post by Esteves » 26 Nov 2008, 08:40

Background, not endorsements:

http://store.tacticaledgeproducts.com/2 ... asp20.html" onclick="window.open(this.href);return false;
http://www.silencertalk.com/silencer-fo ... f4f5518f45" onclick="window.open(this.href);return false;
http://www.smallarmsreview.com/pdf/Johns223.pdf" onclick="window.open(this.href);return false;
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Re: subsonic .223 rem

Post by stg2ahn » 26 Nov 2008, 08:42

all things being equal.
would subsonic .223 be much different from 60grain SSS (sniper sub sonic) Aguila rounds?
terminal performance and ballisticswise?

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Re: subsonic .223 rem

Post by Wollychop » 26 Nov 2008, 08:44

I am skeptical of the extreme shock because a midway review says, despite what it advertises, that it will most certainly NOT cycle an autoloader. But then that smallarmsreview article says different :ponder:

I'd still like to load my own. Extreme shock ammo is dubious (to me) and way overpriced imo.

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Re: subsonic .223 rem

Post by stg2ahn » 26 Nov 2008, 08:46

seen a few articles somewhere debunking extremeshock. They work ok, but are way overpriced. MOre of a novelty item

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Re: subsonic .223 rem

Post by Esteves » 26 Nov 2008, 08:49

A 100 grain subsonic .223 would have about 2/3 more momentum, energy, and sectional density than a 60 grain Aguila SSS at the same velocity.
The BC of the .223 is likely to be better, but both will "shoot like rainbows" and wind is not your friend.
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Re: subsonic .223 rem

Post by Wollychop » 26 Nov 2008, 09:38

Looking at published data, even a 90 grain hpbt with 20 grains of imr 4895 is still doing 2200 fps. I dont know how feasable it would be to try to back down from that high of an initial velocity.

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Re: subsonic .223 rem

Post by romer522 » 26 Nov 2008, 10:15

Wollychop wrote:Looking at published data, even a 90 grain hpbt with 20 grains of imr 4895 is still doing 2200 fps. I dont know how feasable it would be to try to back down from that high of an initial velocity.
Pistol powder?

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Re: subsonic .223 rem

Post by Grantness » 26 Nov 2008, 14:52

Youd be better served by one of the JDJ cartridges. But Im guessing the reason you are interested in 223 is that u already have guns in that chambering...

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Re: subsonic .223 rem

Post by Wollychop » 26 Nov 2008, 16:48

Yep. And a couple suppressors filling the new year's resolution to prepare for the coming nazi robot zombie armageddon.

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Re: subsonic .223 rem

Post by Esteves » 26 Nov 2008, 17:03

Wollychop wrote:...prepare for the coming armor-wearing NVG-equipped nazi robot zombie-filled-with-HOPE armageddon.
A few additions to reflect my view on the end of days. :)
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Re: subsonic .223 rem

Post by Wollychop » 26 Nov 2008, 18:50

Ah. Thank you for the correction.

you forgot to use the word "change" though.

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Esteves
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Re: subsonic .223 rem

Post by Esteves » 26 Nov 2008, 19:25

Got any? (Change, that is.) Times are tough all around.
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