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Lenght of the brass !!!

Discussion in 'Handloading and Reloading' started by alca, May 1, 2013.

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  1. alca

    alca Member

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    Hi, i want to measure my brass pistol cause i want to have the same lenght.
    Do i measure it before resizinf or after the resizing operation?
    Thank
     
  2. oldpapps

    oldpapps Member

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    Most pistol brass is straight walled, so it shouldn't make any difference. I normally check length after sizing straight walled brass and always after sizing bottle necked brass.
     
  3. jstein650

    jstein650 Member

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  4. 45lcshooter

    45lcshooter Member

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    Check after resizing. Straight walled cases usually grow, if grow at all, after several firings.
     
  5. Walkalong

    Walkalong Moderator

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    Right, sizing will lengthen brass as it squeezes it inward. Always trim after sizing.
     
  6. Jesse Heywood

    Jesse Heywood Member

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    On some revolver cartridges, which I don't trim, I sort by length before resizing. Makes crimping easier. I quit trimming a straight-wall rounds.
     
  7. Arkansas Paul

    Arkansas Paul Member

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    You trim handgun brass after each sizing?
    I have never trimmed a piece of handgun brass.
     
  8. Walkalong

    Walkalong Moderator

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    No, he asked when to trim, before or after sizing. That is the answer. After.


    I never trim auto brass, but I do trim a lot of revolver brass. I am shooting mixed .38 Spl and .357 brass, and the lengths are all over the place, so I trim them to get better more consistent crimps. I bought a bunch of Starline .32 Long and .32 Mag brass. It is so consistent in length I have not trimmed it. My .45 Colt brass is also mixed, and I trimmed it as well.

    Many people never trim any pistol brass, and I never knock anyone for not doing so. YMMV :)
     
  9. gamestalker

    gamestalker member

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    Trim after resizing. And for the record, I trim all my brass. There is a SAAMI specification for "trim too length", use that specified length. And your right, it does make crimping go a lot more consistent and helps to eliminate issues with light, or over crimped cases, which leads bullet jump, or buckled cases.

    GS
     
  10. bigdaa

    bigdaa member

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    I'm another one insisting that it be measured after full length sizing.
     
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