338 lapua barrel contour

Discussion in 'Gunsmithing' started by Emad700777, Mar 21, 2019.


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  1. Emad700777

    Emad700777 Well-Known Member

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    Hi ,
    I am planning to build a hunting 338 lapua rifle and was wondering what is the lightest contour I can do ?
    I saw a model 70 SS in 338 win mag and likes the light contour they made..Is it safe to have it done with 338 lapua?
     
  2. Edd

    Edd Well-Known Member

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    Do you intend to have a muzzle brake installed?
     
  3. Emad700777

    Emad700777 Well-Known Member

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    Yes
     
  4. Edd

    Edd Well-Known Member

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    I have an opinion based on information I have gathered from people that should know the facts. The contour of a Model 70 338 Win Mag barrel is not going to be suitable for a 338 Lapua.

    Starting at the chamber end, you need a 1.125" diameter tenon thread for the Lapua. For that thread diameter, the diameter of the barrel needs to be a minimum of 1.300" on the chamber end. The diameter of the neck for a SS barrel, measured 6" from the bolt face, should be about .950". The muzzle diameter should be about .800" for a brake.
     
  5. Wolf76

    Wolf76 Well-Known Member

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    You may want to look at a carbon fiber barrel. That's what I did with my 338 edge.
     
  6. Emad700777

    Emad700777 Well-Known Member

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    Couldn't find cheap one
     
  7. Edd

    Edd Well-Known Member

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    I think there will be chronic compatibility issues between 338 Lapua and cheap.
     
  8. Emad700777

    Emad700777 Well-Known Member

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    OK not cheap .. Let us Say a catch