7mm Rem Mag Twist Rate

Discussion in 'Long Range Hunting & Shooting' started by brainey64, Feb 9, 2011.

  1. brainey64

    brainey64 Member

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    I am currently doing a rebuild on my Ruger M77 MKII and I would much appreciate any suggestions on proper twist rate for the barrel I am building.

    Ruger M77 MKII 7mm Rem Mag

    H-S Precision Pro Series Sporter Stock (PSS033)

    Original Action with Timney Trigger

    SS Sporter Contour #6 that I have machined to 27" with 6 Flutes, recessed crown and will have a company do the chambering.

    Zeiss Conquest 3.5-10x50 MC Scope

    Farrell Rail and Rings

    Accu Shot Monopod and Bipod

    I plan on using only 140 - 160 grain bullets.



    Thank you in advance

    Newbie
     
    Last edited: Feb 9, 2011
  2. liltank

    liltank Well-Known Member

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    Nov 3, 2008
    If your planning to stick with 140 to 160 grain bullets, a 1:9 twist will do it. That will even handle up to a 175 and even 180 grain bullets. It will be all you need.

    Tank
     

  3. brainey64

    brainey64 Member

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    Feb 9, 2011
    thanks Tank....I was looking at 1:9 or 1:9.5