Why was 600m chosen as a target distance?

Discussion in 'Competition Shooting Forum' started by Hasaf, Oct 12, 2017.

  1. Hasaf

    Hasaf New Member

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    Last night I was talking to a co-worker about sporting use of the AR-15 platform and I mentioned 600m target. He later asked me a question that I was unable to answer, why was 600m chosen as a distance for target shooting?
    EDIT: Should read yards
     
    Last edited by a moderator: Oct 12, 2017
  2. Shooter45

    Shooter45 *Administrator* Staff Member Supporting Member

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    600 m ?
    NRA Hi-Power Competition uses targets at 200, 300 and 600 YARDS.
     
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  3. Hasaf

    Hasaf New Member

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    Sorry, meant yards, I tend to think in meters. In particular, I was think of the CMP (civilian marksmanship program) competition..
     
  4. Twicepop

    Twicepop Well-Known Member

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    They did it, because they could.
     
  5. gdmoody

    gdmoody Moderator Supporting Member

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    When I was shooting competition with the US Army way back in the early 70s, it was 600 meters NOT yards and it was know as a 600m KD range. It stood for 600 meter Known Distance. We shot with the M-14, not the M-16!
     
  6. ms6852

    ms6852 Well-Known Member

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    My guess would be is because of the maximum effective range that each of the service rifles fired. The m16 had a maximum effective range of 600 yards, the M14 had a 500 yard effective range and the M1 was 440 yards. This of course using iron sights. Just my 2 cents and no proof.
     
  7. Alpo

    Alpo Well-Known Member

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    The maximum effective range of a Garand is 440 yards? That's a tad unbelievable.

    As for the 600 number, I read somewhere, years and years ago, that regular GI ball ammo (not AP) had to be able to penetrate both sides of a GI steel pot at 600 yards.

    Maybe the penetration requirement carried over into targetting. I mean, heck, if you can't HIT IT at 600, how do you know it will penetrate?
     
  8. nmckenzie

    nmckenzie Well-Known Member

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    Agree. Our DCM Matches at Camp Smith back in NY were fired using the Garand at 200yds. standing, 300yds. sitting or kneeling, and 600yds. prone.