Archive for .223 Rem. 5.56x45

.223 Remington Vs. 5.56: What's in a Name?

There is much confusion between the .223 Rem. and the 5.56 NATO rounds.

March 04, 2013

.223 Rem. vs. 5.56x45 mm NATO: Is It Safe?

I have received a slew of questions—many from first time AR-type rifle buyers—about the .223 Rem. and the 5.56x45 mm NATO cartridges. Can I shoot 5.56x45 mm NATO in my .223 and vice-versa? Are these the same cartridge?

March 04, 2013