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Converting .223 brass to 300 BLK brass???

Discussion in 'Ammo & Reloading' started by theswan_33, Jul 25, 2013.

  1. theswan_33

    theswan_33 Marksman Member

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    I'm new to this forum so this may not even be the spot for this. I know very little about reloading and I was wanting to know what equipment I would need to convert .223 brass to 300 BLK brass. Again I know nothing about reloading. I was wondering what dies, what they do, just everything in Lehman's terms please. Any help would be greatly appreciated.
     
  2. aeropb

    aeropb Sharpshooter Member

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    [video=youtube_share;5rpx5XbqAgM]http://youtu.be/5rpx5XbqAgM[/video]
     
  3. HiredHand

    HiredHand Sharpshooter Member

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  4. ASP785

    ASP785 Sharpshooter Member

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    I use a jig and a mini chop saw to form my 300 blackout brass.
     
  5. SPCAS

    SPCAS Sharpshooter Member

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    I also use a mini chop jaw to cut mine down. Then just resize, trim and ready to go
     
  6. Fyrtwuck

    Fyrtwuck Sharpshooter Member

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    I've been looking into this too. I want more info. OAL case length, powder and type loadings, bullet weight. With everything I have, all I'd need is the case cut off, the trimmer and bullets. Then I'd just have to find an upper.
     
  7. theswan_33

    theswan_33 Marksman Member

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    This is really helpful guys. I appreciate it. Now what's the difference in a full length sizing die and a neck sizing die? Why does the mini chop saw not cut it short enough? Why the need for the trimmer? Is all this stuff labeled 300 blackout? Like the dies and trimmer? Sorry for all the questions guys, I wasn't lying when I said I knew nothing about this stuff.
     
  8. Fyrtwuck

    Fyrtwuck Sharpshooter Member

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    The brass being modified is .223 and being modified to 300 BLK.

    The brass will be marked .223.

    A full length die will size the full length of the case, the neck sizing die will just size the neck to fit the bullet.

    The mini chop saw just cuts the brass down to a rough length, you use the case trimmer to cut the brass to the exact length.
     
  9. theswan_33

    theswan_33 Marksman Member

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    Ada
    Thanks. Is a case trimmer caliber specific?
     
  10. ASP785

    ASP785 Sharpshooter Member

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    Most of them are not. Some, such as the World's Finest Trimmer are.
     

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