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Thread: Sizing brass

  1. #1
    SD Regular Greener Jim's Avatar
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    Sizing brass

    So, started to resize my new norma brass tonight.
    I've set the die as per instructions but it isn't sizing the neck, what am I doing wrong?

    I can tell as some of the brass has minor dinks in the neck and they aren't being removed at all.

    Its td a straight case if that makes a difference
    Last edited by Greener Jim; 08-01-2015 at 23:00.

  2. #2
    Mark the outside of the case with a felt tip marker, to see if the die is coming down on it.
    And what about the inside sizer ball? Is it missing?

  3. #3
    What cartridge and what dies Greener?

    Ian.

  4. #4
    SD Regular Greener Jim's Avatar
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    How would I check for the inner sizing ball?

    Its 45-120 cases through RCBS dies Ian.

  5. #5
    Here is a cutaway of drawing of the die in action.
    Click image for larger version. 

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  6. #6
    Quote Originally Posted by Greener Jim View Post
    How would I check for the inner sizing ball?

    Its 45-120 cases through RCBS dies Ian.
    I'm not sure there is an expander ball in the FL sizer of a 45-120. IF it's a 3 die set the expansion is done with the 2nd die. You DO have the right die in the press, right?? If so. does a bullet fall into the case??~Muir

  7. #7
    SD Regular Greener Jim's Avatar
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    It is indeed a 3 die set.
    I have the sizing die in there definitely. What I'm gleaming from this is that the neck will be resized by the neck expanding die, that right?

    I don't know why but that didn't even occur to me!

  8. #8
    Not really resized more belled out Jim if the dies work in a similar fashion to pistol dies.
    It's the calibre of the shooter that counts not the calibre of the rifle.

  9. #9
    SD Regular Greener Jim's Avatar
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    So the sizing die does the case and the expander die does the neck? Fair assumption?

  10. #10
    Quote Originally Posted by Greener Jim View Post
    So the sizing die does the case and the expander die does the neck? Fair assumption?


    Yes. Does a bullet fall into the resized case?~Muir

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