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Centerfire Rifles - Semiautomatic or Gas Operated Centerfire rifles, carbines and other gas operated rifles.

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  #1  
Old 01-10-2012, 12:37 AM
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Default 5.56 vs 2.23

honestly what is the difference between the too..im new to this cartridge and new to ar15 system...here is a pic with 556 55grain on left and 223 55grain on right
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  #2  
Old 01-10-2012, 12:40 AM
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2.23?

When you line them up side by side, the 5.56 is a few mm longer.
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Old 01-10-2012, 12:43 AM
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556 is federal and 223 is pmc btw
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Old 01-10-2012, 12:46 AM
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Quote:
Originally Posted by jukeboxx13 View Post
556 is federal and 223 is pmc btw
H-mm, this....

http://en.wikipedia.org/wiki/5.56%C3%9745mm_NATO
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Old 01-10-2012, 1:01 AM
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First are you sure your rifle is capable of firing the 5.56?
Second its .223 not 2.23
Third search.
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Old 01-10-2012, 1:09 AM
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yea my rifle is chamber for 556 and my mistake its .223
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Old 01-10-2012, 1:12 AM
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Pressure generated and height of the shoulder of the casing.
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Old 01-10-2012, 1:19 AM
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so the 5.56 is more powerful then??
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Old 01-10-2012, 1:23 AM
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Quote:
Originally Posted by jukeboxx13 View Post
so the 5.56 is more powerful then??
Higher velocity, more chamber pressure.

its safe to fire .223 in a 5.56 chamber, not safe to fire 5.56 in a .223 chamber.
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  #10  
Old 01-10-2012, 2:33 AM
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5.56 has thicker brass walls. more velocity.. blah blah. its all ben said already
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Old 01-10-2012, 6:16 AM
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Quote:
Originally Posted by jukeboxx13 View Post
so the 5.56 is more powerful then??
No not really. If both are the same length with the same powder, then neither has more power then the other. 5.56 is loaded to a higher pressure for the same length projectile as its brother .223. The 5.56 is assembled differently and has a slightly different case allowing this higher pressure.

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Originally Posted by NYY View Post
5.56 has thicker brass walls. more velocity.. blah blah. its all ben said already
yup, thats one of the differences.

The danger people talk about is in the chamber design of the barrel. The 5.56 is a loose chamber to a .223, which is ok. The 5.56 gets rammed into a .223 chamber and its that tight fit and short throat that causes too high of pressure for the .223 to handle. The barrel could burst. The most common sign of a .223 chamber when shooting 5.56 is primers popping out of the cases.
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Old 01-10-2012, 7:53 AM
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The wikipedia article is pretty good, and the different method of measuring pressure mentioned in that article is seconded by my Lee reloading manual.

In your case buying an AR, it's unlikely you have a chamber spec'd to .223 versus either Wylde or NATO chambers. Those guys shooting various bolt guns may have an issue with NATO ammo, but they wouldn't be shooting that crap anyway.
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Old 01-10-2012, 8:30 AM
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Is there any documented instance of a 5.56 round blowing up a .223-chambered rifle? Not to say it's not possible but I have yet to see that.
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Old 01-10-2012, 8:55 AM
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Quote:
Originally Posted by longhairchris View Post
Is there any documented instance of a 5.56 round blowing up a .223-chambered rifle? Not to say it's not possible but I have yet to see that.
I see people posting popped primers now and then and I assume some of them are from 5.56 in a .223 chamber. I doubt many people blow out their barrels but I'm sure it's happened. I'm not sure I'd want to buy a ticket in that lottery especially when it's not hard to find the right caliber for the chamber.
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  #15  
Old 01-10-2012, 9:03 AM
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Here you go: http://lmgtfy.com/?q=5.56+vs+.223
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Old 01-10-2012, 9:21 AM
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Get a Wylde chamber, best of both.
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  #17  
Old 01-10-2012, 9:21 AM
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Hahaha, thats just great!
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Old 01-10-2012, 12:06 PM
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Quote:
Originally Posted by NYY View Post
5.56 has thicker brass walls. more velocity.. blah blah. its all ben said already
Quote:
Originally Posted by deviljon View Post
Why have a forum where people can ask questions then?

I guess you dont feel that your opinion (if you have one) or knowledge of a given subject (if you have any) is valued by others.

To the OP: Also research head spacing to get some further understanding. As said before, its safe to shoot .223 in a 5.56 chamber but not necessarily the other way around (well, you can get away with it but its not advised). Most ARs are chambered for 5.56 so you will be fine using either cartridge. Watch out for some specific predator hunting guns though that are chambered for .223. A Wylde chamber is a good way to go as mentioned earlier.

Last edited by TwoAsoapbox; 01-10-2012 at 12:16 PM..
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  #19  
Old 01-10-2012, 3:51 PM
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thanks man i learned a lot
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  #20  
Old 01-10-2012, 4:02 PM
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Quote:
Originally Posted by TwoAsoapbox View Post
Why have a forum where people can ask questions then?

I guess you dont feel that your opinion (if you have one) or knowledge of a given subject (if you have any) is valued by others.
Why have a search function?

Yes, we were all newbies at one point. I myself just got into firearms not even half a year ago. I also had this same exact question the OP posted, but instead of posting a new thread did a quick search on google.

It's understandable if certain topics aren't discussed much but this particular question is asked ALL THE TIME.
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Old 01-10-2012, 4:17 PM
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Quote:
Originally Posted by deviljon View Post
Why have a search function?

Yes, we were all newbies at one point. I myself just got into firearms not even half a year ago. I also had this same exact question the OP posted, but instead of posting a new thread did a quick search on google.

It's understandable if certain topics aren't discussed much but this particular question is asked ALL THE TIME.
Some are not as resourceful as yourself.
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  #22  
Old 01-10-2012, 8:55 PM
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way newby here...thanks for the info, this thread completely answered my question...really excited about my new build...
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  #23  
Old 01-10-2012, 11:38 PM
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damn people talk a lot of **** on forums..lol

Last edited by jukeboxx13; 01-11-2012 at 3:29 AM..
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  #24  
Old 01-11-2012, 2:36 AM
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3.33
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  #25  
Old 01-11-2012, 9:33 AM
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Originally Posted by jukeboxx13 View Post
damn people talk a lot of **** on forums..lol
are you new to the internet also? haha - unfortunately.... that's just how it is here
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Old 01-11-2012, 10:33 AM
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Quote:
Originally Posted by deviljon View Post
Why have a search function?

Yes, we were all newbies at one point. I myself just got into firearms not even half a year ago. I also had this same exact question the OP posted, but instead of posting a new thread did a quick search on google.

It's understandable if certain topics aren't discussed much but this particular question is asked ALL THE TIME.
You would be surprised to know how many people out there just don't get the fact that all of the information is on the internet through search engines.. I have dissected search engines for hours on end to find the answers i need, most people (are lazy) just ask people that search instead of searching for the answers themselves.
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Old 01-11-2012, 10:54 AM
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Quote:
Originally Posted by jukeboxx13 View Post
damn people talk a lot of **** on forums..lol
Nobody is talking **** here, hell I even searched it for you!

Word of advice, checking for answers on google will always be faster than posting the question on a forum waiting for people to reply. More often than not your question has been asked before.

Quote:
Originally Posted by SoCalSig1911
You would be surprised to know how many people out there just don't get the fact that all of the information is on the internet through search engines.. I have dissected search engines for hours on end to find the answers i need, most people (are lazy) just ask people that search instead of searching for the answers themselves.
Word.
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Old 01-11-2012, 6:36 PM
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The 5.56 has increased pressure load, and is loaded to military specifications.

The .223 is a civilian cartridge, for small and medium game hunting, and bigger (depending on bullet and cartridge type). 223 ammo will fire in 5.56 firearms, but 5.56 should not be fired in .223 only firearms, otherwise you risk a kB! or worse.
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Old 01-11-2012, 8:17 PM
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Quote:
Originally Posted by SoCalSig1911 View Post
You would be surprised to know how many people out there just don't get the fact that all of the information is on the internet through search engines.. I have dissected search engines for hours on end to find the answers i need, most people (are lazy) just ask people that search instead of searching for the answers themselves.
If the information is already available out there, than why have a discussion forum such as this one?

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Originally Posted by fnull View Post
way newby here...thanks for the info, this thread completely answered my question...really excited about my new build...
Oh yeah, thats why...
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Old 01-11-2012, 8:47 PM
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This is the best site out there for finding information regarding CA legal AR's...you can do a search on google, but it will just lead you here...for all of you that are wondering why to post, it is for guys like me...you are providing a huge service to newbies without even knowing it...Thank you for that...
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Old 01-11-2012, 8:47 PM
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Default Some hate to wait a week...

Calguns schedule...

Sunday: Which is better, 9mm or .45?
Monday: 5.56 v. .223
Tuesday: Which lubricant is best?
Wednesday: How do I break in my barrel?
Thursday: 870 v. Mossberg 500
Friday: Best ammo for HD?
Saturday: Which pistol/rifle/shotgun should I get next?

-hanko
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Old 01-11-2012, 9:19 PM
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Quote:
Originally Posted by -hanko View Post
Calguns schedule...

Sunday: Which is better, 9mm or .45?
Monday: 5.56 v. .223
Tuesday: Which lubricant is best?
Wednesday: How do I break in my barrel?
Thursday: 870 v. Mossberg 500
Friday: Best ammo for HD?
Saturday: Which pistol/rifle/shotgun should I get next?

-hanko
You left out a 1911 thread of some kind. Or an AK vs AR thread.

What would you like to see on here?
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Old 01-11-2012, 9:20 PM
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Quote:
Originally Posted by fnull View Post
This is the best site out there for finding information regarding CA legal AR's...you can do a search on google, but it will just lead you here...for all of you that are wondering why to post, it is for guys like me...you are providing a huge service to newbies without even knowing it...Thank you for that...
I agree, I learn a lot on this forum. You will come to find that there is a relatively small number of members that actually post decent opinions and information, and the rest pretty much just trash talk and make sarcastic comments.

Last edited by TwoAsoapbox; 01-11-2012 at 9:25 PM..
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Old 01-11-2012, 9:23 PM
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LeeLaw will ban you all.
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Old 01-11-2012, 9:25 PM
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I am ok if you actually looked and to find info... I mean I KNOW I have posted stuff and tried to find it through the search and NOT BEEN ABLE to find it soooo......?
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Old 01-11-2012, 9:26 PM
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One goes bang, the other goes boom.


In all seriousness, if your rifle is chambered in 5.56 then you can shoot both, NOT the other way around. 5.56 has more pressure and stuffs.


So in the end, buy whats cheap
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Old 01-11-2012, 9:32 PM
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Quote:
Originally Posted by TwoAsoapbox View Post
You left out a 1911 thread of some kind. Or an AK vs AR thread.
Those are next month.

What's google? I'm new to the interwebz.
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Old 01-11-2012, 9:51 PM
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Originally Posted by Squirrel15 View Post
Those are next month.

What's google? I'm new to the interwebz.
Google is probably what you used to find this forum.
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Old 01-11-2012, 10:03 PM
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Some people have really strong opinions on these different calibers, and it is fun to hear what people think about them. Of course, if you have been into guns for decades, it is not interesting anymore -

I know I posted one asking "which caliber is best for hunting deer" and felt pretty dumb after that....

Last edited by PlumDrumnGun; 01-11-2012 at 10:06 PM..
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Old 01-11-2012, 10:41 PM
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Quote:
Originally Posted by TwoAsoapbox View Post
If the information is already available out there, than why have a discussion forum such as this one?


Oh yeah, thats why...
If more people searched then you wouldn't have the same discussions about the same topic 5 times a day. That should leave room for those new discussions here at the forum.. In 5 minutes there should be a .223 vs. .223 thread lol.
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