7mm WSM

Discussion in 'The Basics, Starting Out' started by antonyfrench, Sep 16, 2009.

  1. antonyfrench

    antonyfrench Member

    Mar 29, 2004
    Hi all, Im building a 7mm wsm but need some advice, the specs are...montana 1999 short action, accuracy innovations laminted full alloy bedding block stock, Ken farrel 20 MOA base, swarovski 4-12X50 TDS, other bits and pieces to follow. Question, im looking at a Tru-flight (because im in NZ) ultra-match 6 flute barrel...so should it be #4 or #5 contour and what length?? 24" is good, but will 26" give any real difference?? This gun has to be carried up some pretty steep mountains after a Thar or Chamois so has to be practical. I would appreciate any advice. PS looking to shoot 168 gn Bergers - any reports on loads and bullet performance would likewise be apprecited.

  2. horsefor4

    horsefor4 Well-Known Member

    Jul 7, 2008
    I have the very same rifle but it is in a mcmillan sako hunter stock. I have a #3 contour barrel and leoupold 4.5x14x40 it is 8lbs. It shoots sub moa. to 600 yards.

  3. loaders_loft

    loaders_loft Well-Known Member

    Feb 11, 2008
    My 7wsm had a 24 before but now it's got a 26" barrel. The 26 is easier to make book velocity. I could never quite get the book numbers with my first barrel, now I can slightly exceed the velocities, not that I run over max.

    It also doesn't buck as much with the longer barrel, which helps me shoot better.
  4. bwaites

    bwaites Well-Known Member

    Jun 24, 2007
    I've gotten great accuracy out of 168's and H4831 SC. Sub 1/2 MOA at 300 yards.

    I prefer the 180's though.

  5. J E Custom

    J E Custom Well-Known Member

    Jul 29, 2004
    I have several 7 WSMs and have built many more and the consensus seams to be the #5 contour,23 or 24 inches and the 140grain accubond for deer size game and the 160 grain
    accubond for Elk size game.

    You won't gain that much with a 26" barrel except length.

    A #4 contour will be lighter but less forgiving when reloading. ( I like the #6 contour but it is a
    little heaver. Recoil is not an issue with the 7 WSM so you can save some length by not installing
    a muzzle break.

    The 7 WSM is becoming one of my favorite rifles for all round hunting from bob cats to Elk and

    Last edited: Sep 17, 2009
  6. kiwi3006

    kiwi3006 Well-Known Member

    Aug 1, 2007
    Good to see another Cantabrian on here!!
    I have a 7mm rem mag with a true flite ultra match barrel (1 in 9 twist, special geometry). I went with a 26" No4 barrel. Be aware that true flites barrel numbers are different to a lot of the US manufacters. The true flite No 4 has a 0.700 muzzle. A Lilja No 5 has a 0.700 muzzle. A No 5 trueflite will be a very beefy barrel.
    As a carry rifle I wouldn't go heavier than a true flite No 4 and a No 3 will prob be ok.
    My rifle is a rem 700 with rem plastic stock, Leupold VXIII 4.5 -14 x 40 LR and weighs about 9 pound. It is real easy to shoot and with a hand around the bipod I can spot my own shots, even at ranges as close as 300 yds, I do not have a muzzle break. I put that down to the heavy barrel making the rifle very muzzle heavy.
    I have just switched to 168 bergers and they seem to be shooting well, although have yet to shoot them at an animal. The 162 a-max should also work well IF you can find any in NZ at the moment.

  7. foreign

    foreign Well-Known Member

    Jun 26, 2008
    hey mate i agree with Stu, good to see another local on here. im looking into getting a barrel from true flite for my bro in 7mm08.
    trying to get an idea of what contour too. if you have it done soon could you post its weight so i can get an idea of weights and contour. cheers mate