I'm lookin to pick up a new rifle in the next week or so. Can't find one I like in 223 there all chamberd in 556. What's the difference between to two rounds I always thought they were the exact same. I would like to shoot 223 just for the better varmint bullets out there. Sorry if thats a stupid question guys thanks for the help

Buy the 5.56 that way you can shoot the 223 in it as well. NEVER shoot a 5.56 in a 223 chamber because the pressures are higher with the 5.56.

556 NATO rounds are higher pressure

223 Rem is ~52,000 psi
5.56 Nato is ~62,000 psi

Otherwise, they are the same. Do not shoot 5.56 in a 223. Most AR's are 5.56 chambered for the hotter ammo.

If you get a 5.56, you can shoot both 5.56 and .223 indiscriminately. If you get .223, you will be severely limiting yourself and cannot shoot 5.56.

Get the 5.56.

Get a .223 Wylde.

Better accuracy than a 5.56 chamber but can still shoot the 5.56 rounds.

That's what I needed to know thanks guys

Beat me to it!

What these two knuckle heads said !

get 1:7 or 1:8 twist as well.