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Wildcat Build #2, 7mm LRM

Discussion in 'Rifle Discussion' started by P7id10T, May 27, 2016.

  1. P7id10T

    P7id10T Cedar Hills Bronze Supporter Bronze Supporter

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    Finally found the time to put this together.
    Built a 7mm Long Range Magnum, a wildcat developed by Gunwerks based on the 375 Ruger, necked down and shortened by 0.080"
    • Remington 300RUM action. On taking it apart, it was apparently accurized. :)
    • McGowen SS Barrel, D5A contour, 1:8, 26", Threaded muzzle
      The McGowen has a deep chamber throat for long VLD bullets.
    • 4 port muzzle brake by Nathan Wright
    • MDTTac TAC21 chassis, 3.715 Magazine well
    • LuthAR buttstock on fixed buffer tube
    • DPMS AR Grip
    • Weight, as shown: 11.3 lbs, 2 lbs heavier than if I had gone with a light composite stock.
    A Leupold Mark 4 ER/T for glass.
    While waiting for parts, I kept my eye out for 7mm bullets. Found 700 Nosler CC 168gr at 32¢ each, and 400 Cauterucio 189gr & 172gr for 40¢ each.
    Making the brass is a major PITA. When I need more, I think I'll just buy some from Gunwerks.
    I'll take her out this next week and post a range report.
    If I really like her, a Jewell HVR trigger will be the next enhancement.
    Since she looks like a Franken-gun, once I'm done practicing, I'll do a camo paint job.

    Last edited: May 27, 2016
    edslhead likes this.
  2. Velzey

    Velzey Estacada, Oregon Gunsmith Gunsmith Bronze Vendor Bronze Supporter

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    Oh very cool! That's going to be a tack driver I'm sure..
  3. P7id10T

    P7id10T Cedar Hills Bronze Supporter Bronze Supporter

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    First trip to the range today in months.
    I had intended to fire form cases and chrono loads. I left 1/2 of my loaded cartridges back home.
    Short of it is, 71gr RL26 under a Sierra 175 SPBT, 3.355 OAL, yields 3000 FPS, No sign of pressure yet.
    The recoil is less than my Ruger Hawkeye 7mm-08 mountain rifle.