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Author Topic: 5.56 and .223  (Read 19670 times)

Hazcat

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Re: 5.56 and .223
« Reply #20 on: March 18, 2009, 11:08:23 AM »
When the whole 223 vs 556 started there were lots of problems with 556 from a 223.  Then someone came up with a new standard 223 chamber that did both.  Can't remember the name of the chamber but it became industry standard.

As stated before there is a whole thread on this subject with all of the info I just posted but with dates, names, etc.

It COULD be in a thread about 7.62 Nato vs 308.
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Big Frank

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Re: 5.56 and .223
« Reply #21 on: March 18, 2009, 07:30:58 PM »
I read somewhere, I think in American Rifleman, that .223 marked Mini-14s are chambered for 5.56mm. Ruger knew people would use mil-spec ammo so they made sure it would work.
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kmitch200

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Re: 5.56 and .223
« Reply #22 on: March 18, 2009, 07:44:27 PM »
Quote from: Hazcat on March 18, 2009, 11:08:23 AM
When the whole 223 vs 556 started there were lots of problems with 556 from a 223.  Then someone came up with a new standard 223 chamber that did both.  Can't remember the name of the chamber but it became industry standard.

As stated before there is a whole thread on this subject with all of the info I just posted but with dates, names, etc.
It COULD be in a thread about 7.62 Nato vs 308.

Could it be the Wylde chamber?
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tombogan03884

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Re: 5.56 and .223
« Reply #23 on: March 18, 2009, 07:49:25 PM »
Quote from: kmitch200 on March 18, 2009, 07:44:27 PM
Could it be the Wylde chamber?

I think that's it.
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Timothy

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Re: 5.56 and .223
« Reply #24 on: March 18, 2009, 08:00:35 PM »
The Bushmaster the kids got shoots bodofum.  It's marked on the barrel....or the receiver, can't 'member...


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Sponsor

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Re: 5.56 and .223
« Reply #25 on: Today at 04:05:24 PM »
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blackwolfe

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Re: 5.56 and .223
« Reply #25 on: March 18, 2009, 08:33:54 PM »
I have a Rock River Arms LAR-15 with a stainless 1/8 twist .223 Wylde chamber.  The .223 Wylde chamber is basically a comprimise that will let you shoot .223 in a 5.56 with better accuracy.  At least that is how I understand it.  RRA has a brief explanation of it in their catalog, but I don't know if it is on their website. A web search for .223 Wylde will come up with many results.

Every Mini-14 manual I have looked at has stated you can use milspec 5.56 in the .223 Mini-14.  The Ruger website online manuals state so also.  I imagine that if there were some .223 marked Mini-14s that were not capable of safely using the 5.56 there would be big warnings about it in the online manuals.  A call to Ruger with the serial number will verify if you can use 5.56.  Some early Mini-14s were chambered for .222 and some current ones are chambered for 6.8.

About that remembering thing CRS comes with age  Can't Remember..........oh yea Shuff.

 
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tombogan03884

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Re: 5.56 and .223
« Reply #26 on: March 18, 2009, 08:51:42 PM »
As I posted earlier GENERALLY (rule of thumb) If it is marked 5.56 you can shoot either, if it is marked .223 shoot ONLY .223 in it. HOWEVER, as has been mentioned there are exceptions to every rule, Ruger's marked .223 are GENERALLY OK to shoot 5.56, and the .223 Wylde is chambered to take both. There may be others that are, like Ruger, marked .223 but can fire both. DO NOT ASSUME IT. If in doubt contact the Manufacturer before firing 5.56 in any .223 chambered arm.
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PegLeg45

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Re: 5.56 and .223
« Reply #27 on: March 18, 2009, 11:36:07 PM »
On the Mini-14 thing, one reason it may use both, but is marked .223 may be because (I read somewhere, AR Magazine?) Bill Ruger originally designed the Mini-14 to try to get a gubmint contract to take over for the AR-15.
When that didn't pan out the commercial market .223 was where he went, but to save tooling he kept the 5.56 size chamber but marked them for commercial .223.

I do not know this for sure, but THINK I read it in a good source......but, I've been wrong plenty of times before.   ;)
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Rastus

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Re: 5.56 and .223
« Reply #28 on: March 19, 2009, 06:12:05 AM »
Quote from: tombogan03884 on March 18, 2009, 08:51:42 PM
As I posted earlier GENERALLY (rule of thumb) If it is marked 5.56 you can shoot either, if it is marked .223 shoot ONLY .223 in it. HOWEVER, as has been mentioned there are exceptions to every rule, Ruger's marked .223 are GENERALLY OK to shoot 5.56, and the .223 Wylde is chambered to take both. There may be others that are, like Ruger, marked .223 but can fire both. DO NOT ASSUME IT. If in doubt contact the Manufacturer before firing 5.56 in any .223 chambered arm.

Good synopsis.  I need to scoot over to Ruger and check out my Hawkeye and see if I can shoot 5.56 in it....
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Ping

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Re: 5.56 and .223
« Reply #29 on: March 27, 2009, 11:54:13 AM »
I believe 5.56 burns hotter than .223 or vica versa? Can't remember right off hand.
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