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.223 or 5.56 for an AR?

Discussion in 'Ammunition & Reloading' started by zeezee, Nov 25, 2009.

  1. zeezee

    zeezee nowheresville Member

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    I just picked up a Dillon 550 and plan on reloading ammo for my AR-15's. Can I reload the commercial .223 once fired brass or would I be better off just letting it lay where it falls?
  2. Unka-Boo

    Unka-Boo Milwaukie Active Member

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    .223 in a 5.56 chamber= good to go

    5.56 in a .223 chamber= may have issues

    Que the popcorn for one of the oldest online debates....
  3. Grizzly_A

    Grizzly_A Portland Metro Area Member

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    always pick up the brass even if you're not planning to reload it. Keep your shooting areas clean and make some money at the scrap yard or reload it yourself.

    What do your dies say on them?

    Did the brass come from your gun or someone elses?

    Regardless, if you full length resize and trim to spec you're going to be making working ammo. There may be slight variations in powder capacity per case due to wall thickness, but the outside dimensions will be set by your dies and should chamber in either a .223 or 5.56. (assuming you've got .223 Small Base dies for your AR15)