New build - 7SAUM

Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by West Bay Wader, Apr 22, 2014.

  1. West Bay Wader

    West Bay Wader Member

    Dec 21, 2008
    The specs.

    Benchmark 30" 5r 8 twist 7mm tube light varmint. Chambered in 7 SAUM. (From the benchmark group buy - I can't wait to shoot this beauty)
    Stiller Predator s/a
    Stiller DBM
    Alpha Mags
    Jewell trigger
    McMillan A-3/5 , 2 flush cups
    Kahle 6x24 56 MSR
    Nightforce 6screw rings

    Built by Omar Alonzo in the Houston area - builds a lot of 6.5 SAUM hammers.

    I cannot wait to get some time to shoot it. I will break it in with 180 VLDs over a healthy dose of Retumbo and if I can ever find some H1000 will compare that to the Retumbo. Yes that is an 8 twist cited above as I have heard about some 195 VLDs in the future and I would rather have a little more than not enough.

    This whole project started from me thinking about rebarreling a Rem 7-08 sporter that needs a need tube to be fun. But one thing leads to another and you need a new stock, why bother truing an action, that trigger needs work, etc.............

    Attached Files:

  2. cohunter14

    cohunter14 Well-Known Member

    Oct 11, 2012
    Great looking rifle!
  3. BlackGSD

    BlackGSD Member

    Apr 13, 2014
    Great looking rifle. How did you get the magazines set up to feed the SAUM? I have a 7WSM also on a Stiller Predator. I am using Wyatt's DBM with 308 magazines with the lips bent out. I have it feeding pretty reliably but I get the occasional failure to feed. Any advice you can give me?
  4. West Bay Wader

    West Bay Wader Member

    Dec 21, 2008
    I am using 300 WSM mags from alpha industries. I have the 10 round version. In testing with the dummy rounds they have fed fine. I will know more when I get out to the range.

    .300WSM Magazines
  5. trucraft

    trucraft Well-Known Member

    Apr 17, 2013
    Very nice rig.
    I have a very similar saum on a Borden action but same scope and stock.
    Keep posting your load test results, I'm interested to hear how you do.
    I use H1000 but struggle to keep consistent coal over 65gr with bergers even at 2.970
    So guess that you will single feed the 195grn's
  6. Truc

    Truc Well-Known Member

    Mar 18, 2012
    Gotta love the 7 SAUM, I have one very similar, Stiller action, Rem Varmint contour 25" Rock Creek w/ brake, in a A3 Edge Sporter McMillan, has a 4.5x14x50 Mark 4 on it. I load at 2.9" OAL from a BDL Mag with 58 grains H4831 under the 180 Bergers. I do have some 190 Matrix but saving them for a larger cartridge.
  7. skyfish25

    skyfish25 Well-Known Member

    Sep 28, 2010
    Sweet rifle, I have a 7mm SAUM being built as well, #5 brux fluted. Will be my primary hunting rifle. Snowy Mountain rifle.