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.300 SWM

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3 comments

  • tsr1965
    Try posting this over in the reloading forum, if you have not already. For the possiblity of litigation, most people will not tell you what their load is, but give you a range. I would suggest buying a Barnes manual, if that is what you want to shoot. From experience(and I love the Barnes bullets), the "X", "XLC", and the "TSX", like to be seated about 0.050" off the lands.

    Best
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  • vdms55
    thanks for the headsup on the reloading forum. i was unaware. mostly just looking for powder brands that would seem to be most compatable with the short mags.
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  • nononsense
    vdms55,

    This is some of the information from the Barnes website:

    .300 WSM

    Bullet Weight: 165 gr Case Trim Length: 2.090" S.D. 0.248
    Bullet Style: TSX BT Primer: Federal GM215M B.C. 0.380
    COAL: 2.820" Barrel Length: 24"
    Case: Winchester Twist Rate: 1:10"

    Bullet Weight: 165 gr Case Trim Length: 2.090" S.D. 0.248
    Bullet Style: MRX BT Primer: Federal GM215M B.C. 0.439
    COAL: 2.830" Barrel Length: 24"
    Case: Winchester Twist Rate: 1:10"

    Bullet Weight: 165 gr Case Trim Length: 2.090" S.D. 0.248
    Bullet Style: Banded Solid Spitzer Primer: Federal GM215M B.C. 0.438
    COAL: 2.810" Barrel Length: 24"
    Case: Winchester Twist Rate: 1:10"

    Bullet Weight: 168 gr Case Trim Length: 2.090" S.D. 0.253
    Bullet Style: TSX BT Primer: Federal GM215M B.C. 0.404
    COAL: 2.840" Barrel Length: 24"
    Case: Winchester Twist Rate: 1:10"

    Charge Velocity Charge Velocity Load
    Powder (grains) (fps) (grains) (fps) Density (%)
    RL 15 53.0 2831 58.5 3060 89
    Win 760 60.5 2898 65.0 3101 89

    Keep in mind that reloading data suggested is exactly that, suggested, not cast in stone. You still have to do the testing and load work up.

    Best.
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