cartridge designation?

Discussion in 'Semi-Auto Handguns' started by potentialglock, Dec 5, 2012.

  1. potentialglock

    potentialglock New Member

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    What's the second number in the cartridge designation. Like 9x19 or 7.62x39 etc. Is the second number the bullet length or cartridge length?
     
  2. willfully armed

    willfully armed Active Member

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    Mm in length for metrics.
     

  3. c3shooter

    c3shooter Administrator Staff Member Admin Moderator Lifetime Supporter

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    Bear in mind that the diameter is the NOMINAL diameter. A .22 Magnum is NOT the same diameter as a 22 LR. The 9mm Parabellum and 9mm Makarov or NOT same diameter. Sometimes the name itself is a bit screwy- .38 Specials are NOT .38 inches in diamter, etc.
     
  4. locutus

    locutus Well-Known Member Supporter

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    The second number is the case length.