interesting. i aways thought they were interchangeable. i guess not.
ruger mini14 i thought could fire the nato round, but apparently one should not.
This article is so poorly written as to be nearly incomprehensible
Here’s all the average Joe or Jill needs to know. Buy your AR chambered in 5.56 mm NATO. Then you don’t have to worry about it as you can safely fire either one.
L
Great varmint rounds.
I agree with the carry-ability of the aluminum/plastic/steel ARs and light ammo. Plus wounding ties up more grunts than killing.
That being said I personally, in a tight situation, would rather have an M14 (or equivalent) with the hard hitting and penetration of the 7.62X51. but that’s just me.
FWIW, I make 300 AAC Blackout from 5.56 military brass rather than .223 for my AR pistol. I’ve found, as many others have, that most of the military 5.56 brass to be just a tad thicker which makes for a good neck thickness for resulting 300 BO cartridges. Of course, the military brass has the primer crimp to deal with but a Dillon swaging tool makes quick work of that.
IF I were to switch uppers for the more standard calibers, like others have posted above, it would be for the 5.56 NATO rather than .223.
You mean I cant shoot a .308 in my 30-06?
Always preferred 7.62 myself.
I built my AR using a 223 Wylde chambering to avois this very issue.
In theory they are not interchangeable, but...........
Almost all modern AR type rifle platforms can chamber and fire both the .556 and the .223 Rem. Most ammo that you purchase from a store is .223 Rem. So the vast majority of the time there is not problem.
Where there is a problem is mostly for folks who have .223 Rem bolt action rifles or single shot Thompson Contender type pistols. If you have one of these and a buddy gives you some military surplus 5.56 ammo, then you “might” have a problem or might not depending on how strong the action is and how tight the chamber of your firearms is.
So is this a problem? It could be for a few, but not for most.