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Old 04-18-2013, 07:54 PM
simplemangw simplemangw is offline
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Newbie Ammo question .223 or 5.56 1/9 Newbie Ammo question .223 or 5.56 1/9 Newbie Ammo question .223 or 5.56 1/9 Newbie Ammo question .223 or 5.56 1/9 Newbie Ammo question .223 or 5.56 1/9  
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Default Newbie Ammo question .223 or 5.56 1/9
Yes I know i'm a newbie here but do have questions on ammo. I just bought my 1st S/W M&P AR 15. The barrel has 5.56 1/9 stamped on it. The only ammo I could get at the time was .223 Hornaday 65gr. It has shot flawlessly but do I need to be shooting 5.56 instead? All experties will be appreciated.
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Old 04-18-2013, 08:02 PM
ihaschzbrgr ihaschzbrgr is offline
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Newbie Ammo question .223 or 5.56 1/9 Newbie Ammo question .223 or 5.56 1/9 Newbie Ammo question .223 or 5.56 1/9 Newbie Ammo question .223 or 5.56 1/9 Newbie Ammo question .223 or 5.56 1/9  
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If it has a 5.56, you can shoot both 5.56 and .223, but not vice versa (a .223 barrel should not shoot a 5.56 round)
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Old 04-18-2013, 08:16 PM
MichiganScott MichiganScott is offline
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Newbie Ammo question .223 or 5.56 1/9 Newbie Ammo question .223 or 5.56 1/9 Newbie Ammo question .223 or 5.56 1/9 Newbie Ammo question .223 or 5.56 1/9 Newbie Ammo question .223 or 5.56 1/9  
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The 5.56 is loaded to a higher pressure. The throat is longer and the taper angle to the lands is less sharp to deal with it in a 5.56 chamber.
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Old 04-18-2013, 08:27 PM
simplemangw simplemangw is offline
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Newbie Ammo question .223 or 5.56 1/9 Newbie Ammo question .223 or 5.56 1/9 Newbie Ammo question .223 or 5.56 1/9 Newbie Ammo question .223 or 5.56 1/9 Newbie Ammo question .223 or 5.56 1/9  
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Thanx for the quick replies brothers, so I am ok shooting either , or then. Hope to post pics soon.
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Old 04-18-2013, 09:38 PM
Squirrel Master Squirrel Master is offline
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Newbie Ammo question .223 or 5.56 1/9 Newbie Ammo question .223 or 5.56 1/9 Newbie Ammo question .223 or 5.56 1/9 Newbie Ammo question .223 or 5.56 1/9 Newbie Ammo question .223 or 5.56 1/9  
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Originally Posted by simplemangw View Post
Thanx for the quick replies brothers, so I am ok shooting either , or then. Hope to post pics soon.
Yup, good to go with either or kind sir. Happy & Safe shooting!
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