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Trim length on 223

Discussion in 'Ammunition & Reloading' started by Lloyd Braun, Jan 3, 2011.

  1. Lloyd Braun

    Lloyd Braun Vancouver Active Member

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    The standard trim to length on the cartridge is 1.760 correct?

    I have a friend that trims to 1.750, is this safe/ ok?

    most of my once fired brass comes in around 1.758 for winchester and 1.753 for remmington, do i need to trim these?

    im new to rifle reloading

    thanks
     
  2. deadeye

    deadeye Albany,OR. Moderator Staff Member

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    1.76 is max length and 1.75 is the trim to length.
     
  3. Lloyd Braun

    Lloyd Braun Vancouver Active Member

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    is there a bottom to that?
    if i over trim and it comes to 1.748 or so should i trash those?
     
  4. deadeye

    deadeye Albany,OR. Moderator Staff Member

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    No that should not make a significant enough of a difference to worry about. The only issue would be if you over trimmed majorly it would raise the pressure a little, but that small amount wont matter.
     
  5. Lloyd Braun

    Lloyd Braun Vancouver Active Member

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    thanks for the help
     
  6. toolfan

    toolfan North Portland Member

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    If the OAL is constant, the shorter brass shouldn't have higher pressure.

    The problem would be that the shorter cases won't grip the bullet as tight, and you get inconsistant crimps with inconsistent brass length.
     
  7. jib

    jib Central OR Active Member

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    I agree with toolfan.
     
  8. Spitpatch

    Spitpatch Forest Grove, Oregon Well-Known Member

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    I agree with toolfan.

    (note: I did not cut and paste my response from another source, and any resemblence to any other response is purely coincidental).