300 WM--- Best Velocity for Accuracy?

Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by samson, Oct 14, 2009.

  1. samson

    samson Well-Known Member

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    For all you guys shooting a 300 WM. At what velocity do you seem to get your best accuracy? I am shooting a 200 Grn Accubond and 208 Amax. At first I was trying to get the fastest velocity with no pressure signs, but I am learning that this may not be the best for accuracy. I will be using this for hunting purposes.
     
  2. RockZ

    RockZ Well-Known Member

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    For my savage 300 win with 200smk's and 26" barrel I found the best combination of velocity and accuracy at 2850fps .
    I was using imr 7828ssc.
     

  3. SES50

    SES50 Well-Known Member

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    With a 26" T/C Encore Barrel and 200 Gn TSX I found the best accuracy to be at 2880 fps.
     
  4. magicofmt

    magicofmt Well-Known Member

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    200 gr accubonds at 2860 or so was best for my gun with H-1000. Tried faster to 3100 but no accuacy. 26 in barrel
     
  5. ivo

    ivo Well-Known Member

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    178gr Amax 75gr RL22 3028fps .5moa
    180gr NAB 82gr H1000 3050fps .5moa
    180gr Scirocco 74.5gr RL22 3175fps .5moa
    208gr Amax 70.5gr H4831sc 2880fps .5moa

    I don't load for speed just sometimes I get it sometimes I don't.
    I just noticed my velocities seem to be on the high end... I treat my barrels with Gun Juice, maybe thats why, I don't know but there are no pressure sings in my rifle at these velocities but there may be in your rifle. Start 10% less charge and work up.

    Ivo
     
  6. magicofmt

    magicofmt Well-Known Member

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    Ivo, do you get a cruching sound using 82 grs of H-1000? I use 80grs and it's a full case load with slight crushing of the powder with 180 gr Scirocos
     
  7. RockZ

    RockZ Well-Known Member

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    IVO,
    Looks like your velocities are appropriate.
    I shoot the 200's at 2850 and the 180's at 3100.
     
  8. ivo

    ivo Well-Known Member

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    1.)Yes, the charge with h1000 is a compressed load.
    2.)I thought my velocities sounded kind of high but I guess not. Maybe I've been shooting the .308 too much lately.
     
  9. Moman

    Moman Well-Known Member

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    ivo, my 300 WM has its best accuracy at 2900 fps with the 180 AB. Occassionally I'll speed it up a little and the groups will open up a bit. Not too bad, still under .75 MOA.