300 WM with Berger 210 grain VLD and IMR 4350

Discussion in 'Reloading' started by Cannon-300, Apr 21, 2018.


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  1. Cannon-300

    Cannon-300 Member

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    I have a new 300 WM with a 26 inch barrel with 1:9 twist and 0.160 of free bore. I am in need of advice on a load to start with. I will be using 4350 powder and Berger 210 grain VLD bullets. My COAL to touch the lands is around 3.640 in. by my measurements with a Hornady OAL gauge but when I seat a bullet to this COAL and cycle it through the rifle the cartridge comes out around 0.050 shorter at 3.590 in. Therefore I plan to start at a COAL of 3.590 in which may actually be touching the lands. My Berger reloading manual does not give any data for bullets which are seated out farther, therefore I am not sure where to start my powder load. If anyone has experience with this combination and would be willing to share your load data it would be much appreciated. Thanks, Mike
     
  2. bigbulls

    bigbulls Well-Known Member

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    Quick load has 3.590" oal, max pressure at 69.5 grains. there are better powders for that bullet out there. start low and work up. good luck
     
  3. journeymanwirecontrols

    journeymanwirecontrols Member LRH Team Member

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  4. martinakl

    martinakl Well-Known Member LRH Team Member

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    1:9 twist? You should move up to the 215s and 230s.

    The popular formula on here is: 300 win + 215's + H1000 = amazing.
     
  5. journeymanwirecontrols

    journeymanwirecontrols Member LRH Team Member

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    I have to agree with big bulls, you should use a much slower burning powder, especially with such a heavy bullet and one that will fill that case all the way up. I dont feel the 4350's are pushing this case to its full potential. Start with lighter charges and slowly work your way up, watching for pressure signs as you go. I use the burger 210 myself in my 30-378, getting great groups. Have fun.
     
    Michael Cannon MD likes this.
  6. ShtrRdy

    ShtrRdy Well-Known Member

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    I like to use H1000 with the 210 gr VLD. I ended up with the bullet touching the lands for best accuracy.
     
    Michael Cannon MD likes this.
  7. Cannon-300

    Cannon-300 Member

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    Thanks!
     
  8. Cannon-300

    Cannon-300 Member

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    Thanks to all for your advice! Much appreciated!!
     
  9. Cannon-300

    Cannon-300 Member

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    How many grains of H 1000 did you end up with? I will plan to start a few grains below this and work up slowly.
     
  10. Elkeater

    Elkeater Well-Known Member

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    yup.
     
  11. martinakl

    martinakl Well-Known Member LRH Team Member

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    My 300 win load with 210’s is 75.5 of H1000. Federal magnum primers. That load wasn’t hot in my rifle. Nosler Brass. Same load worked with Hornady Brass.
     
    Michael Cannon MD likes this.
  12. can1010

    can1010 Well-Known Member

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    210 , 215 Berger, H-1000 start 74.0 max around 78.0
    IMR7977 good alternative start one grain less
    210 vld just touching is golden
     
    Michael Cannon MD likes this.
  13. Cannon-300

    Cannon-300 Member

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    Thanks! I have the H1000 on order! Will try some 215 grains as well!
     
  14. Cannon-300

    Cannon-300 Member

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    Thanks for the advice!