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Old 01-31-2012, 04:40 PM   #1
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Can someone explain the difference between a 223cal. and a .556. I just found there a difference but don't know what it is !! Thanks Pat C.
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Old 01-31-2012, 04:42 PM   #2
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There's quite a bit of information on this topic already floating around this very forum. Try a search.
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Old 01-31-2012, 04:51 PM   #3
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Like most searchs it brought up everything but what I wanted!!
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Old 01-31-2012, 04:55 PM   #4
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The 556 has a thicker wall than the 223 and is rated to higher pressure.
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Old 01-31-2012, 05:00 PM   #5
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http://search.yahoo.com/search?p=difference+between+%22.223%22+%225.56%22& ei=utf-8&fr=chr-yie9
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Old 01-31-2012, 05:14 PM   #6
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Buy a firearm in 5.56 and you can shoot .223 other way around you can blow up a firearm.
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Old 01-31-2012, 09:11 PM   #7
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Pretty much what others mentioned...To my knowledge the 5.56 casing is thicker than the .223 casing, which, in turn, creates more pressure. While a 5.56 chamber is built to handle the higher pressure, a .223 chamber is not. Because if this, you can shoot both 5.56 and .223 rounds in a gun chambered in 5.56. However, you do not want to shoot 5.56 rounds in a .223 chamber, as it is not built to handle the higher pressure, and can blow up your rifle.
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Old 01-31-2012, 09:20 PM   #8
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Lot of the threads about this topic already. Pls dont be lazy searching before posting.
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Old 02-01-2012, 06:18 PM   #9
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Like most searchs it brought up everything but what I wanted!! 2nd Time!!!
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Old 02-01-2012, 06:28 PM   #10
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Search about how to do an effective Internet search.

Or just look at post #5!
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