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Thread: Tool for making 300 Blackout cases from 5.56 brass

  1. #11
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    Quote Originally Posted by Humpy70 View Post
    You are referring to chop saw at Harbor Freight going down on you I assume?
    Yes. One of the cheapest Chinese products ever.
    "What would a $2,000 Geissele Super Duty do that a $500 PSA door buster on Black Friday couldn't do?" - Stopsign32v

  2. #12
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    Regarding rough cutting cases for 300blk does any member with a 3 d Printer care to make a jig to make this process more efficient volume wise?
    Want nothing out of it, just pass along an idea.

  3. #13
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    I have three 7 gallon buckets full of .223/5.56 brass. I was thinking of doing the same thing and making a bunch of 300 BO brass with a bucket or so of the brass. Hoping to see/find something that works and is a reliable system to do so.
    ETC (SW/AW), USN (1998-2008)
    CVN-65, USS Enterprise

  4. #14
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    Quote Originally Posted by Humpy70 View Post
    I assume there are several folks making brass for 300 BO here. Understand there is a chop saw (for lack of a better description) available to make the rough cut just below the shoulder.

    I will probably be making up a thousand cases from LC 5.56 brass I have laid in.

    thanks
    If I was doing a thousand cases there is no way in hell I would be doing them one at a time. I would build a small box to hold them and be cutting 20 or 30 at a time on a tablesaw.

    A good carbide blade will slice through that soft brass like butter and not even think about damaging the blade.

  5. #15
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    Quote Originally Posted by DG23 View Post
    ...I would build a small box to hold them and be cutting 20 or 30 at a time on a tablesaw.

    A good carbide blade will slice through that soft brass like butter and not even think about damaging the blade.
    That's exactly what I'm trying to have a prototype made on a 3d printer.

    "Book/clam shell with a top handle , groves that hold the cases in place with a " plastic pin" to keep cases in line.

  6. #16
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    Couldn't you use stripper clips to hold 10 rounds as you cut them?

    (I have no interest in this project, I'm just curious.)

  7. #17
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    Quote Originally Posted by Bimmer View Post
    Couldn't you use stripper clips to hold 10 rounds as you cut them?

    (I have no interest in this project, I'm just curious.)

    Since you mentioned it - I can imagine that working and being fairly simple.

  8. #18
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    If nothing else, you could use stripper clips AND some kind of flat clamp (so they wouldn't splay out).


    And is it that hard to find once-fired 300BLK brass?

    My source for once-fired brass has always been to buy a case of brass-cased, Boxer-primed ammo and shoot it...

  9. #19
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    Quote Originally Posted by sidewaysil80 View Post
    If you plan on getting a progressive press or if you already have one, the Dillon rt1500 case trimmer and 300blk tool head is by far the most efficient/consistent option.
    This is the only way I would do it if I wanted to do large volumes. Just dump the 5.56 cases into a case feeder and run them through your progressive press, spitting out completed 300 Blk empty cases.
    https://youtu.be/xZgdvX-VjIM


    Sent from my iPad using Tapatalk

  10. #20
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    Quote Originally Posted by sidewaysil80 View Post
    If you plan on getting a progressive press or if you already have one, the Dillon rt1500 case trimmer and 300blk tool head is by far the most efficient/consistent option.
    This is the correct answer, even if you’re not running it on a progressive.

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