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I have been noticing that alot of the civilian tactical rifles are chambered in 5.56 and .223. What is the difference between the two.calibers, like in balistics?
 

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5.56 is a higher pressure round than the .223. You can fire 223 in a barrel designed for 5.56, but you do not want to fire 5.56 in a barrel designed for .223.
 

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5.56 is what real operators use. .223 is a much weaker round and isn't as good at killing terrurists. FYI Call of Duty uses guns chambered in 5.56. There's a reason for that.
 

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5.56 is what real operators use. .223 is a much weaker round and isn't as good at killing terrurists. FYI Call of Duty uses guns chambered in 5.56. There's a reason for that.
Laughed so hard I started crying. :D
 

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Read the aforementioned sticky. In fact, read them all.
 
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