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What causes this?

Discussion in 'Reloading' started by squirreld, Oct 24, 2012.

  1. squirreld

    squirreld

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    Winchester 40's.

    [​IMG]
     
    Last edited: Oct 24, 2012
  2. WiskyT

    WiskyT Malcontent

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    I don't know, but Winchester would be the last possible cause I would blame. It looks like they were fired out of a home made gun.
     

  3. bob98247

    bob98247

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    Full length crimping?
     
  4. squirreld

    squirreld

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    I was thinking either a super tight bbl or a custom super tight resizer?
     
  5. PhantomF4E

    PhantomF4E

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    Was this range brass of do you know what kind of gun these were shot out of ?
     
  6. Taterhead

    Taterhead Counting Beans

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    It looks like it might be from a re-sizer die that wan't properly contoured and left an abrupt transition on the leading edge of the sizer ring. That is approximately how far down a sizing die will go on the brass, give or take.
     
  7. WiskyT

    WiskyT Malcontent

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    Except that the case mouth is still dented. Dents like that come right out with re-sizing. Also, notice how the one case is split, and the split is in the area that is bulged out.

    I don't think this is a re-sizing issue.
     
  8. Taterhead

    Taterhead Counting Beans

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    Gotcha. I can't quite make that out in my low-res viewer at the moment.
     
  9. CanMan

    CanMan

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    Case head separation with body of case left/stuck in resizing die.
     
    Last edited: Oct 25, 2012
  10. countrygun

    countrygun

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    I have got a really wild ***ed theory to put forth.

    Suppose someone got one of the Ruger Blackhawk 38/40-10mm convertibles, somehow fired .40 S&W in the 38/40 cylinder and then resized the brass?
     
  11. njl

    njl

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    Looks like .40S&W Belted Magnum to me.

    :)
     
  12. squirreld

    squirreld

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    unknown weapon.
    case mouth is dented due to handling.
    No idea if universal decapper or resizer was used on it.
    No splits in the case anywhere.

    I see no bulge anywhere. So I am going to assume it was run through a resizer.

    And just for the record, I am not going to reload them.
     
    Last edited: Oct 25, 2012
  13. WiskyT

    WiskyT Malcontent

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    I couldn't figure out what chamber it would be, but I was thining the same thing, fired in the wrong caliber gun.
     
  14. WiskyT

    WiskyT Malcontent

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    The case mouth would not be dented if it was resized unless someone dented it after resizing. The base of those cases is the very defininition of "bulge". There sure looks to be a split at the base of the case on the left.
     
  15. sig357fan

    sig357fan

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    I'm gonna go with CG on this one but my guess is that they were fired in a 41 AE and then ran through a 40 S&W sizing die.

    sig357fan
     
  16. jbrown13

    jbrown13

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    I have seen 9mm brass that looked exactly like this. Lee made some undersized "U" dies a few years back and I was one of the unlucky people that got one. They couldn't trace them because of no serial number, but when I called they knew immediately what the problem was and immediately sent me a "U" die with the correct ID. I'm guessing someone got one, or another brand that was undersized, in 40 S&W and went ahead and reloaded and shot it. I threw my 9mm like that in the recycle bin.