.223 v 5.56 Nato. The difference being...?
As the title suggests.
I'd always thought that these two cartridges were the same, just with different names. However, some bits of literature infer that there is a difference because a rifle "can fire both".
It can't be the case or bullet calibre, so what is it? Power/Pressure?
You cannot wake someone who is pretending to sleep. Stop pretending. Wake up.
Freedom: Please enjoy responsibly.