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Old 03-23-2013, 16:48   #3
WoodenPlank's Avatar
Join Date: May 2010
Location: NW Florida
Posts: 7,958
Originally Posted by flw View Post
Rifle made for 556 will shoot 223 as well but not the other way around. 223 rifle will not shoot 556. There is a difference in the dimensions. You need to look at more than the caliber
Not exactly. A rifle chambered in .223 WILL chamber and fire a 5.56 cartridge, but it can result in an unsafe over-pressure situation that can damage the weapon and even possibly harm the shooter.

OP: The chamber needs to be a 5.56 chamber, or .223 Wlyde (A match chamber specifically designed to handle 5.56 ammo). If you are specifically looking at AR-15s, it has been a LONG time since I saw one that did not have one of those two chambers cut into the barrel.

Also, it's the marking on the BARREL that matter, not what's on the lower.
Never argue with an idiot. They will drag you down to their level and beat you with experience.

Last edited by WoodenPlank; 03-23-2013 at 16:50..
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