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Thread: Barrel Length

  1. #1
    Ruger71's Avatar
    Ruger71 is offline Member
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    Barrel Length

    Will different barrel length affect accuracy and velocity? I was told that there was no difference in velocity and accuracy in a 4 5/8" barrel and a 6 1/2" barrel by someone that should know, but I was always told the opposite. Is there a happy medium for a given round? Thanks for the help.

  2. #2
    Snowman's Avatar
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    Yes, there definitely is a difference. My understanding is that the longer the barrel, the more powder actually gets burned, thus increasing bullet velocity. It makes physical sense that accuracy will also be positively affected by a longer barrel, since the rifling will have longer to get the bullet spinning correctly.

  3. #3
    Bob Wright's Avatar
    Bob Wright is online now Senior Member
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    Barrel lengths and performance

    Barrel lengths do effect velcities, though often in unexpected ways. In testing some of my .357 Magnum handloads, some powders delivered higher velocities in a 4" barrel than in a 6" barrel. Usually, however, the opposite is true.

    As to accuracy, a man can usually shoot more acurately with the longer barrels. This because the sight radius is longer. The longer sight radius affords better view of aiming errors, and is more forgiving.

    Bob Wright

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