300 wsm velocity with 180 berger

Discussion in 'Big Stuff -- 6.5mm, 7mm, 30 Cal' started by Chris Roland, Oct 9, 2017.

  1. Chris Roland

    Chris Roland

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    Sep 13, 2017
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    i have a Krieger 10twist 30cal blank on order and going
    To chamber in 300 wsm throated for the 180 gr Berger elite hunter. What can I expect to see for velocity on a 26" barrel fitted to a defiance action. Gonna push em hard and near max. What powders seems to get the best velocity also?? Looking to set the gun up for 5-700 yards on elk
    Thanks
    Chris
     
  2. willbas

    willbas

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  3. L.Sherm

    L.Sherm

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    You give him Win. Mag data he wants WSM.
     
  4. L.Sherm

    L.Sherm

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    Try the new Alliant RL23 and 26 they have been impressive for me in velocity and accurate.
     
  5. Chris Roland

    Chris Roland

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    Sep 13, 2017
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    Rl26 seems like it very well could be the powder of choice
     
  6. willbas

    willbas

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  7. barefooter56

    barefooter56

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    Chris,
    Here you are:http://www.bergerbullets.com/pdf/300-Winchester-Short-Magnum.pdf
    I suggest you start any bullet seating depth testing at .015 OFF THE LANDS. Then work back into the cartridge case in .005 increments. Any bullet seating depth testing should be done at the lowest powder charge listed for the bullet/powder/cartridge combination you are testing. You can read how bullet seating depth can affect cartridge case powder capacity, pressure, velocity and accuracy here:http://www.bergerbullets.com/effect...coal-and-cartridge-base-to-ogive-cbto-part-1/
    and
    http://www.bergerbullets.com/effect...coal-and-cartridge-base-to-ogive-cbto-part-2/
    Once the bullet seating depth accuracy node is found. Work the load back up slowly checking for pressure signs and accuracy until your highest velocity accuracy node is found. If you have any questions please contact us here or at techsupport@bergerbullets.com. Thanks for using our bullets Chris!
    Take care,
     

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