View Full Version : caliber question centerfire rifle
06-02-2009, 9:53 AM
I want to know the difference between .223 ammunition and 5.56 Nato rounds. Are they essentially the same thing? Are they interchangeable?
06-02-2009, 10:15 AM
most ar-15 style firearms marked .223 have barrels than can handle it
and the stuff i had worked in a mini-14 just fine as well
06-02-2009, 10:18 AM
This infers that the bullets are the same size, but the 5.56 is more powerful?
06-03-2009, 3:45 PM
This link may help you understand the differences:
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