Quantcast
  1. Sign up now and join over 35,000 northwest gun owners. It's quick, easy, and 100% free!

300 blk barrel twist

Discussion in 'Rifle Discussion' started by Vaultman, Sep 2, 2015.

  1. Vaultman

    Vaultman Clackamas Co, Oregon Active Member

    Messages:
    309
    Likes Received:
    233
    I have decided on a 300 blackout for my ar. I am going for a 16 inch barrel. What I do not know is what twist rate to go for. Any help on twist rate?

    I assume the question I am going to get back is along the lines of: "What grain bullet are you shooting? What velocity?" To which I will say I don't know this is my first 300 blackout.

    If someone know of a good article on this let me know, or just has a good opinion that would be great. Thanks all.
     
  2. Rockys

    Rockys Clark county Member

    Messages:
    58
    Likes Received:
    16
    Most 300 blk barrels I've seen are either 1-7 or 1-8. The 1-7 should be a little better on the heavies and 1-8 on the lighter. I shoot 208 gr subsonics out of a 10.5" and it does fine.
     
    mjbskwim likes this.
  3. mjbskwim

    mjbskwim Salmon,Idaho Well-Known Member

    Messages:
    10,372
    Likes Received:
    7,584
    Yep yep looks like 1-7 or 1-8 are the popular twist rates
     
  4. Vaultman

    Vaultman Clackamas Co, Oregon Active Member

    Messages:
    309
    Likes Received:
    233
    Thanks guys.
     
    mjbskwim likes this.
  5. Dyjital

    Dyjital Albany, Ore Flavorite Member Bronze Supporter

    Messages:
    4,867
    Likes Received:
    5,760
    Apparently 1:7 with 5R is the cats meow...

    That I heard.