Can .223 be used in 5.56?

[possum]

Can .223 be used in 5.56?

yes.

i agree check out the ammo oracle link to ar15.com that will tell you everything that you wanted to know and then some.

 

[gtmerkley]

5.56 dont work right in a rifle made for .223

 

[lmccrock]

My DPMS 1:8 barrel is stamped "223" and 5.56 runs fine. Maybe DPMS has their own standard for finishing 223 chambers. I expect an AR barrel to run with both unless it was specifically chambered tight for match purposes.

That said, I fall back to my earlier post. The Wylde chamber will handle both.

Is the OP still listening?

Lee

 

[AR15barrels]

Many DPMS 223 barrels have problems with 5.56 ammo.
I run a 223 Wylde reamer into them and they work fine afterwards.