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M-1 Carbine, why not .45 Caliber?

Discussion in 'Caliber Corner' started by PurpleAngel, Sep 1, 2012.

  1. PurpleAngel

    PurpleAngel

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    When the U.S. Military (1940?) came up with the M-1 Carbine for non-front line troops, why could they have not just have used the .45 round instead of the .30 carbine round?
     
  2. banger

    banger

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    First, allow me to confess....

    I am pulling this from my butt....

    However, I seem to recall that the original spec. called for an effective range of 200 yards.

    This alone would have disqualified the .45 from possible adoption.
     

  3. collim1

    collim1 Shower Time!

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    They needed more velocity in order to have a 100+ yds effective range.