5.56x45mm brass for .223 loads

Discussion in 'Reloading Tips & Tricks' started by wolfgang, Nov 11, 2010.

  1. wolfgang

    wolfgang Senior Member

    Dec 10, 2009
    Springfield, MO
    Would there be any issues in using 5.56 brass for .223 loads for hunting? Also, with a 5.56 chamber AR-15 would one be able to safely over spec a .223 by using a max load with magnum primer?
     
  2. Mule

    Mule Active Member

    Sep 27, 2003
    Franklin County, MO
    Yes and NO!

    5.56 brass can be used for .223 reloading.


    Don't "over spec" ANYTHING!!!!!!
     

  3. wolfgang

    wolfgang Senior Member

    Dec 10, 2009
    Springfield, MO
    [rquote=1895775&tid=131830&author=Mule]Yes and NO!

    5.56 brass can be used for .223 reloading.


    Don't "over spec" ANYTHING!!!!!![/rquote]

    What's over spec for .223 though is still within spec for 5.56, there is a difference of 7000 psi between the two.
     
  4. Longbow26

    Longbow26 New Member

    Feb 5, 2005
    Farmington, MO
    I use 5.56 brass to reload for sons gun all the time. I always stay wiht in spec thouhg when reloading.
     
  5. bulletman

    bulletman Active Member

    Sep 22, 2009
    Sedalia
    The brass will work , just run it through your sizing die and make sure it will then chamber and extract in your rifle with no issues. Different brass does not change the pressure spec your rifle was designed to handle. Without pressure equipment it's a "guess" at what 7000 psi looks like in terms of percieved pressure on the case.
     
  6. wolfgang

    wolfgang Senior Member

    Dec 10, 2009
    Springfield, MO
    [rquote=1895898&tid=131830&author=Bulletman]The brass will work , just run it through your sizing die and make sure it will then chamber and extract in your rifle with no issues. Different brass does not change the pressure spec your rifle was designed to handle. Without pressure equipment it's a "guess" at what 7000 psi looks like in terms of percieved pressure on the case. [/rquote]

    The rifle would be 5.56x45mm NATO spec chamber meaning it's spec is 430 MPa (62,366 psi). I'm not looking at going out of the gun's spec, I'm looking at going beyond the load spec as the loading is to a lower spec than the gun or casing are designed for.