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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 woof, woof

    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 Lifetime Member

    Feb 27, 2007

  3. TheBelly


    Jan 1, 2004
    I completely agree with going to AR Performance.

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


    Jul 10, 2000
    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.