OK now who’s slinging BS? You didn't call them today my as#! Funny guy. I wish I could see your face when you find out the 223 is not 55,000 psi! Just do yourself a favor before you get hurt. Google 2.23 vs 5.56 NATO. I don't wish to see anyone hurt. If you really believe that a 5.56 and a 223 are the same, you had better look soon. Sorry man it’s just a fact.