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Thread: Enlarging a Lee Sizer die....

  1. #1
    Boolit Master DanM's Avatar
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    Enlarging a Lee Sizer die....

    How do you enlarge a Lee Sizing die? I want to go from .311 to .312 or .313. I know that I can order a custom, but it seems like emory cloth would do the trick. Just guessing here, but am thinking that emory cloth fastened to a dowel, and spun with a drill would work fine. Could use a fine grit for a bright polish. Seems like it would work if done carefully.....

  2. #2
    Boolit Master

    454PB's Avatar
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    What you suggest will work, just go slowly and check progress often. It doesn't take long to open a die .001" to .002".

  3. #3
    Boolit Master Maven's Avatar
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    Go to the Castpics site (below) and look for Research & Data and Buckshot's article, "How to Hone a Size Die." Try it, it works!

    http://www.castpics.net

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    Boolit Master
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    Here is the precise link and what a great site.

    http://www.castpics.net/RandD/hone_a_die/hone_a_die.htm

  5. #5
    Boolit Master DanM's Avatar
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    OK, sounds good. Will try that method....

  6. #6
    Boolit Master
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    Great idea. And so simple one of us cavemen could do it!

  7. #7
    Boolit Master rvpilot76's Avatar
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    Great article, Buckshot! I've been wondering how I was going to open up a die for my Fatter 30. Now I know! Thanks!

    Kevin
    History will record, with the greatest astonishment, that those who had the most to lose, did the least to prevent its happening.

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    I cast up some bullets, then coat them with valve grinding compound and size them. You can actually feel the cutting action through the press handle.

    I will coat 3 or so bullets, and run them thorught the die a couple of times each. That is generally good for a couple of .001's. Rinse the die with brake cleaner when you have it where you want.

    Remember, you can't put it back.
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  9. #9
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    ............Opening up a Lee sizer is pretty quickly done as there is only a very narrow sizing ring involved. I'd think it's only about 0.100" wide or so. If you're just wanting a thou or 2 I wouldn't use anything more aggressive then 320.

    ...............Buckshot
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  10. #10
    Boolit Master rvpilot76's Avatar
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    The procedure should work for RCBS and Lyman sizer dies as well, no?

    Kevin
    History will record, with the greatest astonishment, that those who had the most to lose, did the least to prevent its happening.

    The problem with Liberals is not that they're ignorant, it's just that they know so much that isn't so.

    - Ronald Reagan

  11. #11
    Boolit Master

    454PB's Avatar
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    Quote Originally Posted by rvpilot76 View Post
    The procedure should work for RCBS and Lyman sizer dies as well, no?

    Kevin
    Yes, it just takes longer
    You cannot discover new oceans unless you have the courage to lose sight of the shore

  12. #12
    Boolit Master rvpilot76's Avatar
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    Thanks. Guess I've got some work to do.

    Kevin
    History will record, with the greatest astonishment, that those who had the most to lose, did the least to prevent its happening.

    The problem with Liberals is not that they're ignorant, it's just that they know so much that isn't so.

    - Ronald Reagan

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