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9mm WST and RMR 124gr MW test

Discussion in 'Handloading and Reloading' started by Blue68f100, Apr 15, 2022.

  1. Blue68f100

    Blue68f100 Member

    Joined:
    May 25, 2011
    Messages:
    8,300
    Location:
    Piney Woods of East Texas
    This is a continuation of the WSF test using WST.

    All shot using my Ranson Rest that I built. All these loads self reset after each firing. All I had to do was pull the string every 5-10 sec.

    Shot out of 1911 that I built, Kart barrel.
    Temp upper 60's, Wind 10-15 at my back.

    WST , Dispensed using a RCBS 1500
    Win Brass
    WSP
    RMR 124gr MW
    @1.120" OAL
    Crony Data taken at 5', data on target.
    Target has 2" BE with 1" outer rings, at 25 yrds.

    4.8gr WST
    9mm 4.8 WST RMR 124gr MW.jpeg

    4.9 gr WST
    9mm 4.9 WST RMR 124gr MW.jpeg

    And the winner again is
    5.0 gr WST
    9mm 5.0 WST RMR 124gr MW.jpeg

    Found a leaf spec under the arm of the sled after shooting. This may explain the shift in elevation on this one.

    5.1gr WST
    9mm 5.1 WST RMR 124gr MW.jpeg
    The group started opening up.

    I need to setup a spotting scope to see where the bullets are hitting. Then I may be able to figure out why I'm getting a little more scatter than I expect.
     
  2. mpssrh

    mpssrh Member

    Joined:
    Feb 19, 2008
    Messages:
    14
    Thank you. Interesting and informative. Please continue to contribute.
     
    kcofohio likes this.
  3. LiveLife

    LiveLife Member

    Joined:
    Jan 10, 2010
    Messages:
    29,993
    Location:
    Northwest Coast
    Thanks for continuing ransom rest testing and posting WST data.

    BTW, since Hodgdon does not publish load data for WST and 9mm, here's Hornady #4 load data from the "WST Published load data for 9mm" thread - https://www.thehighroad.org/index.p...er-target-published-load-data-for-9mm.870180/
    • 9mm 124 gr FMJ WST COL 1.150" Start 4.8 gr (1025 fps) - Max 5.4 gr (1100 fps)
     
  4. tightgroup tiger

    tightgroup tiger Member

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    5,474
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    Piedmont/Triad, NC
    That 5.0 gr of WST is going to be one of my "next to be tested loads".
    Thanks for your hard work on this. I'm anxious to try this but have to get some more Match Winners first.
    TT
     
    kcofohio and Skgreen like this.
  5. Blue68f100

    Blue68f100 Member

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    Location:
    Piney Woods of East Texas
    My velocity is already over 1100fps with 5.0 gr. the reason I stopped. Not seeing any real pressure signs though.

    This Kart barrel has just over 1100 rounds through it.. It's sped up some since it was new.

    I'm getting just as good and maybe a little better using the WSF at 5.0 gr.
     
    kcofohio and LiveLife like this.
  6. tightgroup tiger

    tightgroup tiger Member

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    I have both powders so I can try them side by side to see which works best for me.
     
    kcofohio likes this.
  7. Walkalong

    Walkalong Moderator Staff Member

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    73,550
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    Alabama
    The ones hanging out down in the black bother me. A statistician would say if you shoot enough rounds all those groups would be very similar……..
     
    kcofohio likes this.
  8. kcofohio

    kcofohio Contributing Member

    Joined:
    Dec 16, 2013
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    5,113
    Location:
    NW Ohio
    Interesting. I use 5.1 gr. of WST in 45 Auto along with Berry's 185 gr. HBRN. Runs about mid 700s. But more accurate than I can be.

    Something for others to bear in mine. WST is effected by cooler temps. I notice the loads getting snappier when the temperatures gets into the 50s and lower.
     
  9. Blue68f100

    Blue68f100 Member

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    Location:
    Piney Woods of East Texas
    Yes, WST is reverse temp sensitive.

    I use WST in 45acp with MBC 185gr and 200gr LSWC. My loads are 4.1gr for the 185gr and 4.2 gr for the 200gr. If I recall these are in the 650 fps range.
     
    kcofohio likes this.
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