Is it true that I can safely fire .223 in a gun chambered for

>>30455433
Yes, it is perfectly fine
Doing the opposite is not

yes, when in doubt, RTFM.

it's totally fine
the other way is actually pretty much okay too actually

>>30455495

>the other way is actually pretty much pkay

No, it isn't. Depending on the load, 5.56 can VASTLY exceed the pressure for a .223 chamber and bork up everything.

>>30455495
oops, forgot my link
http://www.luckygunner.com/labs/5-56-vs-223/

>>30455517

>depending on the load

you're right, let me revise, it's totally okay 99% of the time

>>30455528
is LG still charging $100 for a brick of shitty 22lr? ive vowed to never visit that site again.

>>30455433
Dimensionally, they are identical, so it will chamber just fine. The .223 is actually lower in pressure than the 5.56, so there's no danger of a catastrophic failure. 5.56 in a .223 may give you some issues, though.

>>30455558
no idea, I prefer to buy my ammo local, when I can find it

>>30455630
I used to go local, then I realized that I was paying nearly twice as much for ammo. I'm so impatient I can't wait, but since I have plenty of ammo I can probably order online now

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>>30456042
>buying chink rounds
>ever

>>30456115
>chink ammo readily available in the US
Noguns pls go.

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>>30456134
>noguns
Try again cannon fodder

I've read that 5.56x45 has a shorter throat and higher pressure than .223. Has anyone ever seen a chamber burst shooting 5.56 in their .223 gun?

>>30456115
>chink ammo

what is this, canada?

>>30456408
The pressure can be insanely higher. There's no standards for 5.56 - mighr as well be wildcat.

However, the odds of having such a tight fitting, low pressure resiliency .223 barrel while also having a commercially purchased high pressure 5.56 round are pretty low. It's possible, but uncommon.