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can corroded cases be salvaged?

Discussion in 'Handloading and Reloading' started by dakotasin, Jun 2, 2010.

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  1. dakotasin

    dakotasin Member

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    i came into posession of some 22-250 cases that had the case mouths corroded. i tried full length sizing a dozen and 4 of the case mouths cracked during that process; i decided to anneal a batch of 100 and see how that worked out. after annealing i lost 10 more cases due to cracking during the sizing process.

    are corroded bottleneck cases more or less a lost cause? i've never dealt with corroded cases before.
     
  2. WNTFW

    WNTFW Member

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    I'd say not worth the effort and potential problems.
     
  3. Sav .250

    Sav .250 Member

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    Why even fool around with someting that could be a serious problem?
     
  4. rcmodel

    rcmodel Member in memoriam

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    Dark brass colored corrosion usually doesn't hurt anything.

    Cartridge brass is 70% copper, 30% zinc.
    Once it turns to crusty green and/or has black spots under it, the zink has been leached out of the cartridge brass and the cases are scrap metal.

    rc
     
  5. 243winxb

    243winxb Member

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    If brass laid outside for a period, ammonia, that forms in nature, can attack the brass causing "Stress corrosion cracking". Annealing will not fix it.
     
  6. GrimmLV

    GrimmLV Member

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    Toss them, not worth the potential risks...
     
  7. Lorenzo Rojo

    Lorenzo Rojo Member

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    +1 on all offered advice: Once honest-to-goodness corrosion vs. tarnish sets in, the cases are junk. Slight discoloration can be removed with tumbling or sometimes a mild vinegar treatment and some scrubbing. But when the green death sets in, the cases are useless.
     
  8. dakotasin

    dakotasin Member

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    cool... thanks, fellas!

    not fooling around w/ it - just asking if they were any good, and experimenting w/ them in their fired, inert status for experimentation's sake.

    243 - the cases were in a stored container inside a house. i have no idea what they might have come into contact w/, but they are certainly corroded, and not merely tarnished.
     
  9. ranger335v

    ranger335v Member

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    "...just asking if they were any good, and experimenting w/ them in their fired, inert status for experimentation's sake."

    Yep, that's a good practice. If we never step outta our present box we will never make any discoveries or learn anything.
     
  10. Carl N. Brown

    Carl N. Brown Member

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    Corroded casings (slight surface discoloration) can be salvaged, but cracking of the case mouths sounds like a bigger problem than just corrosion, more like the aging and weakening of the brass is causing both the cracking and the corrosion. There's a limit to what I'll try to salvage (my son won't believe that) and I have been selling my way-too-old brass to the scrap metal recylcer.
     
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