9 Twist in a 7mm STW

Discussion in 'Long Range Hunting & Shooting' started by WildRose, Jun 2, 2012.

  1. WildRose

    WildRose Well-Known Member

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    A 1:9 should be more than adequate for any of the heavier 7mm VLD's shouldn't it?

    7mm STW 27" BBL... .
     
  2. HARPERC

    HARPERC Well-Known Member

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    I haven't been much of a 7mm person, but Berger coming out with a 195 intrigues me. Their posts on LRH indicate it will require "at least 1-8.5". I shot some of the old Barnes Originals in this caliber and weight 1-9 worked there, but this bullet should be longer by a bit. Everything else should work. Good Luck.
     
    Last edited: Jun 2, 2012

  3. J E Custom

    J E Custom Well-Known Member

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    It will not only work but it is the recomended twist for all 7 mm bullets.

    If you go much faster with the twist you may have trouble with the lighter bullets just like
    if you go with a slower twist you will have trouble with the heavy bullets.

    My 1000 yard match rifle was a 1 in 9.25 and it loved the 168s and 175 grain bullets.

    Twist rates for a specific bullet may cause problems if another bullet weight is tried.

    You will be fine with the 1 in 9.

    J E CUSTOM
     
  4. 500mag_guy

    500mag_guy Well-Known Member

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    +1 for 1:9.25 twist.

    Shoots great with both of mine with 168gr. Bergers!
     
  5. WildRose

    WildRose Well-Known Member

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    Thanks for the confirmation. I'm mainly looking at the 162-180's and figured that would be about ideal for that class of bullet but still do fine with the 150's.