Carbide Die 'Suddenly' Making Vertical Striations In Cases.

Discussion in 'Ammunition & Reloading' started by RVTECH, Jun 10, 2019 at 7:34 PM.

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  1. RVTECH

    RVTECH
    Wickiup Junction
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    My RCBS 9mm carbide sizing die is suddenly making striations in the cases all the way around them.
    I can't imagine this is something I have overlooked and just recently noticed. Anyone experience this?
     
  2. Reno

    Reno
    Hillsboro
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    How often do you clean your dies?

    Grime gets in there and can cause this.
     
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  3. v0lcom13sn0w

    v0lcom13sn0w
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    usually a dirty die. what ive done is take the decapper out and put some 0000 around a drillbit or better yet a wooden dowel, chuck it up in the drill and buff the inside of the die. its unlikely that dirt/ debris is going to scratch carbide
     
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  4. RVTECH

    RVTECH
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    Regularly - and I cleaned it yesterday and still the striations.
    I just pulled the decap stem and looked at it with lupe and the striations are in the carbide portion of the die.
    I'll hit it with a brass brush to see if it is just heavy grime and see what happens.
     
  5. Dyjital

    Dyjital
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    Gremlins.

    Die gremlins I tell ya.

    Could have been bats ya know, we are in bay country.

     
  6. v0lcom13sn0w

    v0lcom13sn0w
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    could always call the MFG and ask for suggestions. maybe you’ll get a new die outta it
     
  7. RVTECH

    RVTECH
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    I think you mean bat country - and don't forget...
    'He who makes a beast of himself gives up the pain of being a man'
    HST
     
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  8. RVTECH

    RVTECH
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    Ok die scrubbed with a brass brush and about 80% of the lines are gone but I can see very small nicks & chips in the carbide portion.
    This die is a 1977 vintage so it may be time for a new sizer!
     
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  9. v0lcom13sn0w

    v0lcom13sn0w
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  10. v0lcom13sn0w

    v0lcom13sn0w
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    i emailed RCBS once saying i lost a piece of my hand priming tool, how can i buy one? they said no worries, we’ll send you one on us.
     
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  11. RVTECH

    RVTECH
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    WEll, additional scrubbing revealed something I have heard about but never experienced - the carbide inner sleeve is cracked!
    Looks like a new die is in order but I'll call RCBS and see what they say.
     
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  12. v0lcom13sn0w

    v0lcom13sn0w
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    1977. i can only imagine how many bazillion pieces of brass that ol boy has resized!!
     
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  13. RVTECH

    RVTECH
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    Yea and I have only had it for about 12 or so years as a hand me down given to me with a bunch of other reloading stuff!
     
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  14. RVTECH

    RVTECH
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    RCBS emailed and I'll report on what they say!
     
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  15. aasbra

    aasbra
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    I’ve had nothing but excellent customer service from RCBS. Wouldn’t be a bit surprised if you have a new carbide sizer die provided free, under warranty from them headed your way soon.
     
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  16. RVTECH

    RVTECH
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    I don't expect it and only asked if they would sell me one at a discount as opposed to retail so we shall see!
     
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  17. DizzyJ

    DizzyJ
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    Do you cam over when sizing?
     
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  18. RVTECH

    RVTECH
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    No - I am sizing with a Bonanza Co-Ax press and the way it operates it has a 'stopping point' with the ram that prevents cam over.
     
  19. DizzyJ

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    Ok. Another way to ask the question, are you making contact with the shell holder?
     
  20. RVTECH

    RVTECH
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    Just barely - which is how a Co-Ax is suppose to be adjusted. I understand about this issue with other presses (such as my Rock Chucker) where there is nothing to
    Limit the pressure on the die if it makes contact with it.
    With the Co-Ax if the die makes anything more than just slight contact with the shell holder there will be other problems as well but the ram is designed to stop so there is essentially no pressure on the die.
     
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