Need some feed back 7mm REM MAG re-barrel

Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by ICANHITHIMMAN, May 22, 2008.

  1. ICANHITHIMMAN

    ICANHITHIMMAN Well-Known Member

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    Just picked up a Win M70 for a song and want to re-barrel ASAP

    I was thinking 1-9 twist to shoot the heavy stuff.

    But what length barrel do I get to make the most of my handloads?

    I just cant make up my mind on muzzel diamiter eather?
     
  2. MontanaRifleman

    MontanaRifleman Well-Known Member

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    I'm also planning a rebarrel of a 7mm Rem Mag, Ruger M77. I'll probably go with a Lilja 26" #5 flutted.
     

  3. Longshot38

    Longshot38 Well-Known Member

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    I say get a 26 in tube. If you plan on loading heavy bullets then you will want slow burning powder behind them. When you use slow burning powder a long barrel is you best friend. As for diameter that depends on the application you want to use this for. For field use I like about a .850 muzzle diameter.
     
  4. fariswm

    fariswm Well-Known Member

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    I have included the URL to Lilja barrels contour page.

    This will give you the diameter information you wanted.

    My last barrel was a Montana Rifleman barrel with a 9 1/2 twist and I am very satisfied.

    You will want to use a 26 inch barrel for the size of case you are shooting, provided that you stay with 7mm Rem Mag or larger.

    Lilja Precision Rifle Barrels - Barrel Contour Data


    Good Luck.
     
  5. Mr. Reaper

    Mr. Reaper Member

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    May 13, 2006
    Length

    Personally, I would go upwards of 30" in a 7mm Rem Mag if available. Most are at a bit of a price increase. Take advantage of the overbore condition and capture that extra velocity. I would go with a 1:8" twist as well to use the 180gr VLD's too.
     
  6. Willys46

    Willys46 Well-Known Member

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    28"

    I personally think a 28" barrel in a Rem Sendero counture.:D The 1-9 will allow you to shoot the 180 VLDs.