sig twist

Discussion in 'AR-15 Discussion' started by joncutter42, Oct 12, 2010.

  1. joncutter42

    joncutter42 New Member

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    I have a Sig Sour 556 with a 1 in 7 twist, will it fire a 68 or 75gr. bullet acuratly, or does it need a faster twist?
     
  2. M14sRock

    M14sRock Active Member

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    That is a fast twist. It will do the heavy bullets fine.
     

  3. mjkeat

    mjkeat New Member

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    That twist likes the heavy stuff.
     
  4. Dillinger

    Dillinger New Member

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    M14s nailed it - You'll be fine. If you try to shoot the really light weight bullets you are going to run into overspin issues, but for the heavy stuff there will not be an issue provided you do your part. ;)