1 in 12 twist

Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by skitch, Sep 25, 2007.

  1. skitch

    skitch Member

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    Mar 24, 2006
    how big a bullet can i run in a 308 win with a 1 in 12 twist 26" long. would like to go with the 175 smk or the 210 berger. any idea about speed i might get also thanks guys
     
  2. BountyHunter

    BountyHunter Writers Guild

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    Jun 13, 2007
    You should be able to run the 175 (forget the 210) inbetween 2600-2700 depending on which case, powder combo you use.

    BH
     
  3. Nomad

    Nomad Banned

    Messages:
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    Joined:
    Jul 1, 2007
    The 175 is no problem and some shoot the 190 SMK with
    reloader powders the 1-12 with 26" may help depends on other
    things. one of my 308 shoots 175 at 2650 24" barrel and the 26" barrel
    gets 2655 same load Have 2 300 wins difference there of over 100 fps
    and one inch difference in length. difference whos to know...