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Thread: reloading a 5.56 brass using .223 dies

  1. #1
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    reloading a 5.56 brass using .223 dies

    Guys, I need your help.

    I've been reloading handgun ammo for 12 years now but it's my first time to reload a rifle ammo. My first concern is all my brass are 5.56 and my dies are marked .223. Can i reload safely using a .223 dies? is this safe? I'll be using it in a 5.56 chambered M4.

    Thanks for the help.
    Diligentia, Vis, Celeritas

  2. #2
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    Not a problem at all.
    Kelly H
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  3. #3
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    Yes, the 5.56 is a chamber spec, not a brass or cartridge spec. The 5.56 brass will most likely have a lower capacity than the commercial brass, so watch it when you get closer to max. Capacity is close but the 5.56 brass usually has thicker walls in some lots, reducing internal capacity.
    Disclaimer: I am the owner of Freakshow Mfg LLC.

  4. #4
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    Quote Originally Posted by chime View Post
    Guys, I need your help.

    I've been reloading handgun ammo for 12 years now but it's my first time to reload a rifle ammo. My first concern is all my brass are 5.56 and my dies are marked .223. Can i reload safely using a .223 dies? is this safe? I'll be using it in a 5.56 chambered M4.

    Thanks for the help.
    As has been said, 5.56 and 223 brass is the same external dimensions and the same dies are used for both. 5.56 is the chamber spec -- shape and dimensions of the chamber in your gun -- not the brass dimensions spec -- and is also a pressure spec.
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  5. #5
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    Quote Originally Posted by freakshow10mm View Post

    . . . The 5.56 brass will most likely have a lower capacity than the commercial brass, . . . the 5.56 brass usually has thicker walls in some lots, reducing internal capacity.
    False.


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  6. #6
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    Thanks guys for the info.

    About case trimmer, Do i have to trim the case everytime i reload? as of now, i don't have a case trimmer.
    Diligentia, Vis, Celeritas

  7. #7
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    Quote Originally Posted by Molon View Post
    False.


    Thanks for your insight. I load .223 for a living. I've got a bit of experience working with both .223 and 5.56 stamped brass.
    Disclaimer: I am the owner of Freakshow Mfg LLC.

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