I know that if your upper is chambered for 5.56 it can shoot .223 but a .223 can't shoot 5.56 and I understand why. My question is, does the same hold true for barrels?
Thanks in advance.
Posted: 10/31/2009 6:26:01 PM EDT
[#1]
Both cartridges run a .224 bullet so the barrels are identical.
Posted: 10/31/2009 9:11:13 PM EDT
[#2]
It is the chamber part of the barrel that is at issue. The bore of the barrel is the same and the upper receiver itself is the same.
Posted: 11/1/2009 9:14:30 AM EDT
[#3]
Im sorry, I wasnt thinking right when I posted that. lesm is completely right, the barrel is what matters with the chamber issue.
Posted: 11/1/2009 10:28:01 AM EDT
[#4]
So you can't shoot 5.56 in a .223 chambered barrel?
Posted: 11/1/2009 1:27:22 PM EDT
[#5]
No, the first few inches of the barrel is the chamber. So i your barrel is chambered for .223 you cannot shoot 5.56.
Posted: 11/1/2009 1:46:16 PM EDT
[#6]
Thanks.
Posted: 11/3/2009 10:59:06 AM EDT
[#7]
Quoted: So you can't shoot 5.56 in a .223 chambered barrel?
It is not ah, recommended. .223 chambers have a short throat that can cause the pressure to exceed the design pressure when fired using .5.56 NATO ammo.
