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Twist rate or gas length: what's more critical?

Discussion in 'Black Rifle Forum' started by Henry's Dad, Feb 5, 2012.


  1. Henry's Dad

    Henry's Dad
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    woof, woof

    Joined:
    Jun 5, 2011
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    Location:
    Upriver of 3 Mile Island
    I'm looking to get a 6.8 upper for a DIY assembly.

    In my price range (<$600), I can find mid-length with 1:10 twist, or I'm finding carbine length with 1:11 or 1:12.

    After my crash research efforts, it seems the ideal set-up would be mid-lenth with 1:11, but I'm not finding those in my price range.

    My gut is telling me to go mid-length and live with the 1:10 twist, but I'm wondering what is generally more important for performance of the 6.8 platform?

    Am I making too much of one or the other (twist vs. gas)? Is it a wash if one or the other is not "ideal"?

    Thanks in advance for your input.
     
  2. WayaX

    WayaX
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    Lifetime Member

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    Feb 27, 2007
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  3. TheBelly

    TheBelly
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    I completely agree with going to AR Performance.

    Phenomenal weaponry. My 6.8 upper is more accurate than I am.
     
  4. PlasticGuy

    PlasticGuy
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    Jul 10, 2000
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    I would insist on both. It is a cartridge that is still maturing. I would not want to buy a rifle that is out of spec the day I take it home.
     
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