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Is it OK to use military ammo in my 223 rem?
To make any sense of the question we really need more information, is it an AR or a bolt, or something else? Some dealers sell AR's calling them 223, when they are really 5.56 NATO, the caliber should be marked on the barrel.
If you have an AR, then the surplus ammo is normally fine, if you have anything else, take a pass.
