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What makes a rifle 223 or 556?


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#1 OFFLINE   Chadster21

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Posted Aug. 25 2012 - 11:40 AM

Thus might be a simple question but I can't figure it out. Is it just the barrel and bcg that make it either way or does it have to dowith the upper as well? I just order my stripped upper w/m4 feed ramps and Id like to be able to shoot both rounds :flea:


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#2 OFFLINE   bob72

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Posted Aug. 25 2012 - 11:44 AM

Thus might be a simple question but I can't figure it out. Is it just the barrel and bcg that make it either way or does it have to dowith the upper as well? I just order my stripped upper w/m4 feed ramps and Id like to be able to shoot both rounds :flea:



I believe the only diffrence is the chamber of the barrel! If you want to shoot both you need a 5.56 chamber! The BCG and bore diamiter(sp) will be the same


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#3 OFFLINE   pyro073

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Posted Aug. 25 2012 - 11:45 AM

Thus might be a simple question but I can't figure it out. Is it just the barrel and bcg that make it either way or does it have to dowith the upper as well? I just order my stripped upper w/m4 feed ramps and Id like to be able to shoot both rounds :flea:


Its the Barrel/Chamber, 5.56 is slightly longer I believe, also 5.56 typically has slightly higher pressures


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#4 ONLINE   GLShooter

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Posted Aug. 25 2012 - 11:49 AM

Chamber dimensions with the amount of leade make the differences. The general outside dimensions are the same. That is the on change. Nothing in the BCG is changed. We use the same dies for 223/556.

Greg

PS: We also load, 99% of the time, to 223 pressures regardless of the case.

Edited by GLShooter, Aug. 25 2012 - 11:50 AM.



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#5 OFFLINE   Chadster21

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Posted Aug. 25 2012 - 12:20 PM

So all I need to do is make sure the barrel is chambered in 556?


#6 OFFLINE   Nwatson99

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Posted Aug. 25 2012 - 12:22 PM

So all I need to do is make sure the barrel is chambered in 556?

Exactly


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#7 OFFLINE   redbarron06

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Posted Aug. 25 2012 - 02:38 PM

So all I need to do is make sure the barrel is chambered in 556?

Most barrels are stamped near the muzzle of what the bbl is chambered. If it sais 556, you are good to go.


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#8 OFFLINE   Chadster21

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Posted Aug. 25 2012 - 03:59 PM

Ok, easy enough. What would you guys recommend for a barrel and bcg? As far as brand/company wise


#9 OFFLINE   Killer308

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Posted Aug. 25 2012 - 06:01 PM

Ok, easy enough. What would you guys recommend for a barrel and bcg? As far as brand/company wise

Blackhole Weaponry barrel and Addax BCG. You can get both from Addax.


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#10 OFFLINE   Chadster21

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Posted Aug. 25 2012 - 08:29 PM

Blackhole Weaponry barrel and Addax BCG. You can get both from Addax.

Thanks! I'll post pics when I get them :smartass:


#11 OFFLINE   fdxpilot

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Posted Aug. 25 2012 - 10:11 PM

Ok, easy enough. What would you guys recommend for a barrel and bcg? As far as brand/company wise


BCM (Bravo Company.)

BCM Barrels


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#12 OFFLINE   Chadster21

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Posted Aug. 26 2012 - 01:06 AM

Yea I've looked at both the addax and bcm bolt carrier groups. I have an NiB trigger group and it would be nice to have the same in a bcg but for those two companies, there impossible to find in either black or NiB. Any help on that one? :coffee:


#13 OFFLINE   wolfman4466

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Posted Aug. 26 2012 - 07:41 AM

For some reason BCG's are in short supply lately. Only thing I can suggest is keep your finger on the trigger and when you find what you're looking for in stock don't hesitate.

A little pricey but I found this one Wilson Combat BCG


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#14 OFFLINE   Chadster21

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Posted Aug. 26 2012 - 09:32 AM

For some reason BCG's are in short supply lately. Only thing I can suggest is keep your finger on the trigger and when you find what you're looking for in stock don't hesitate.

A little pricey but I found this one Wilson Combat BCG

Yeah, that kinda what I was thinking. Had to do the same thing with my lpk,thanks


#15 OFFLINE   DanR

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Posted Aug. 26 2012 - 11:29 AM

Palmetto State Armory have LPKs in stock.


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#16 OFFLINE   Chadster21

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Posted Aug. 26 2012 - 11:39 AM

Palmetto State Armory have LPKs in stock.

I got my Spikes Tactical enhanced lpk about 3 weeks ago :wink:


#17 OFFLINE   Raptor49er

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Posted Aug. 26 2012 - 01:20 PM

I got my Spikes Tactical enhanced lpk about 3 weeks ago :wink:

That should be a good LPK. I would recommend a full auto BCG when you get ready to purchase it.


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#18 OFFLINE   Chadster21

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Posted Aug. 26 2012 - 04:54 PM

That should be a good LPK. I would recommend a full auto BCG when you get ready to purchase it.

It is, ill post a pic when I get home to a computer. But full auto bcg? Why?


#19 OFFLINE   pyro073

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Posted Aug. 26 2012 - 04:57 PM

It is, ill post a pic when I get home to a computer. But full auto bcg? Why?


They tend to run a little better and have a little more mass and cycle smoother


#20 OFFLINE   Chadster21

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Posted Aug. 26 2012 - 11:26 PM

They tend to run a little better and have a little more mass and cycle smoother

OK that makes sense. Ill have to look at that now,thanks! Heres what I have so far with that ST ehanced LPK
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