Barrel twist rate question

Discussion in 'AR-15 Discussion' started by stelliott80, Feb 3, 2011.

  1. stelliott80

    stelliott80 New Member

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    I am building yet another AR and am looking for some expertise on twist rate. It will be a .223. I typically reload 55 gr bullets but may want to shoot something heavier occasionally. I am putting a 24" bbl on it. Looking for some range and accuracy for varmint/hunting. Any advice is much appreciated. I am partial to RRA, and they offer 1:12 or 1:8...
     
  2. Squirrel_Slayer

    Squirrel_Slayer New Member

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    I've always found the 1:9 twist to be good for 50 to 60 grain bullets, and the 1:8 to really favor a 68 or 69 grain bullet, but that is just my findings and many others will have different input. I have a 24 bull barrel on my AR, 1:8 twist, and the only thing I shoot out of it is 69 grain Matchkings.
     

  3. mjkeat

    mjkeat New Member

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    How heavy? 1:8 might be good for what you're wanting.
     
  4. USEBOTHHANDS

    USEBOTHHANDS New Member

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  5. RJCXJ

    RJCXJ New Member

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    Great link! At least it answered my question anyhow!