Question about 300 wsm

Discussion in 'Gunsmithing' started by coyotewallace, Apr 25, 2007.

  1. coyotewallace

    coyotewallace Well-Known Member

    Jan 3, 2006
    Not sure if this is in the right place but I have a question about this cartridge.
    What I would like to know is will this cartridge function in a Rem 700 Short Action or is it LA?

    thanks for the help

  2. James Jones

    James Jones Well-Known Member

    Jul 1, 2002
    The Rem 700 short action can be made to fit the WSM family of rounds but if you plan to use a heavy bullet you might find yourself either seating the bullet realy deep in the case or shooting it single shot style , but yes the SA will work with the WSM's but it has limitaions.
    So it realy depends on what your wanting to shoot with the gun as far as bullets and such

  3. coyotewallace

    coyotewallace Well-Known Member

    Jan 3, 2006
    Thanks for the help. Yea, I plan on using the lighter bullets but I am not sure which WSM cartridge I will go with but probley the 300 as I have a set of new Redding Dies already(good enough reason for a new rifle for me)I want to put together something to the look of the "LVSF" that Remington has out but I want more horsepower then the 7-08 or 308.

  4. J E Custom

    J E Custom Well-Known Member

    Jul 29, 2004
    The 7 WSM will exceed the velocities of the 7 rem mag
    with 120&140gr bullets.

    And in these bullet weights have better ballistics
    than 30 cal bullets.

    The bolt face will have to be opened up and the
    rails will also have to be opened.

    The Magazine may not hold but 2 rounds (the big
    case does not like the staggered follower but 3
    rounds should be enough.

    Look at the ballistics of the 7 WSM as compaired
    to the 300 WSM with lighter bullets and you will
    probably reach the same conclusion.

    Good luck on your project
    Hope this helps
  5. D.P.

    D.P. Well-Known Member

    May 21, 2004
    The 300 will work fine with lighter bullets. Mine is built on a S/A 700 with an HS magazine, Min. SAAMI spec chamber. The HS box is on the short side, but holds the 175 smk loaded at the lands. Like JE said with heavy bullets there are better ways to go. A 190 smk starts to dip into the powder with my combo.

    Since you plan on lighter bullets either the 7 or 300 work fine. If you wanted to take advantage of the heavy high BC the 7 might be nice. But the 300 set up right will get you at least to a 175 SMK which has been working well out to 1K
  6. overbore

    overbore Well-Known Member

    Oct 14, 2004
    The Win factory loads for the 300wsm have a 180gr hunting round feeding from a short action. I have a SA feeding 210's single shot and I suggest for all round uses a 175 SMK or the Berger is a great way to go. The Wyatt box comes in two lengths so be certain what you are thinking of using or specifying. /ubbthreads/images/graemlins/cool.gif Overbore
  7. BountyHunter

    BountyHunter Writers Guild

    Jun 13, 2007
    The SPS already has the rails set for the WSM.

    For $50 you can have a Wyatts box put in the mag and get another .100 in OAL.

    The WSM will do anything you want with up to 210 bullets.

    H4350 is a great powder for the 168-210 class bullets and standard primers.