interesting comparison - .223, 5.56

[vantec08]

http://www.humanevents.com/article.php?id=41770

[joelogic]

link no work.

[Etihtsarom]

Just mentions the Wylde chamber, but does not discuss it. Wylde chamber is designed to be able to take both Nato and .223. Does any one have any input/experience on the Wylde?
I was buying ammo @ Ammo Bros Cerritos and one of the older guys behind the counter said not to shoot 556 in Wylde chamber at all.

[dr_communist]

My rra upper has a Wylde chamber. It eats anything .223. .556. Steel case brass case. It doesn't matter it all works.