338 Lapua build

Discussion in 'Gunsmithing' started by GoatHerder, Sep 20, 2018.

  1. GoatHerder

    GoatHerder Member

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    Looking for info on an action with the following.

    Integrated recoil lug

    Integrated 20 MOA rail

    Titanium but may consider stainless
     
  2. lancetkenyon

    lancetkenyon Well-Known Member

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  3. phorwath

    phorwath Well-Known Member

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    Built my 338 Lapua Rogue on a BAT Machine HR receiver.
    Integral recoil lug and 20moa picatinny scope rail. Stainless steel - melonited.

    But no titanium option from BAT.
     
  4. GoatHerder

    GoatHerder Member

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    The bolt melonited or the complete action?
    Who did the coating?
     
  5. phorwath

    phorwath Well-Known Member

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    The bolt and the action body are both melonite treated.
    BAT sends them out for melonite treatment. So melonite is an option, straight from BAT.
     
  6. GoatHerder

    GoatHerder Member

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    Would you be willing to share the details of your rifle?
    What bullet do you use?
    What speed you get?
    Barrel length and taper?
    weight?
     
  7. surgeon260

    surgeon260 Well-Known Member

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    Surgeon 1581. Integrated lug, integrated 30 MOA rail. Judging by your interest in Ti, it sounds like weight is a concern. The Surgeon is not light. It is a beast. But in my opinion that is exactly what you want for a Lapua.
     
  8. C.O. Shooter

    C.O. Shooter Well-Known Member

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  9. phorwath

    phorwath Well-Known Member

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    Sure. Here's the link to the Thread that covers this build:
    https://www.longrangehunting.com/threads/the-338-rogue.168245/

    If you decide in a BAT action, do get the melonited action. Without melonite, the bolt lugs are susceptible to galling. With the melonite treatment, they're a class act. I'll add the link to my thread in a bit.

    I'm currently shooting the Badlands Precision 275gr Bulldozer bullets. They're lathe-turned monolithic bullets with an aluminum tip to initiate expansion.
    MV is 3,035fps with this Bulldozer bullet. 0.387 G7 BC.
    Last year I was shooting the Berger 300gr OTM at a muzzle velocity of 2,925fps.

    My barrel is a Bartlein #3"B" contour, with two modifications. The breech shank diameter is 1.305" diameter. The diameter @ 28" is 0.725". Barrel is 28" long with a 4-port Muscle brake. Barrel has been melonited.

    See Post #13 in the "The .338 Rogue" thread for a look at my chamber reamer spec drawing.

    You could gain another ~50fps if you went with less body taper and a 40-degree shoulder. I'm content with this chamber.

    This is on the light end of 338 Lapua Imp rifles. I used a McMillan Thumbhole stock with Edge Technology. McMillan's lightest weight stock. I could have lightened it up further with a Proof Carbon Fiber barrel, and I may some day. This isn't my primary backpack hunting rifle, so I'm OK with it's weight, which is a little under 10lbs. I put a 3.5-18X Swarovski Z5 scope on it, which weighs only 15.9oz.
     
    Last edited: Sep 20, 2018