300 wsm help

Discussion in 'Reloading' started by Blacktail, Dec 30, 2007.

  1. Blacktail

    Blacktail Well-Known Member

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    I have a 300 wsm on a Rem action. 24" pac nor barrel. I was hoping to work up a good load with 150's and 165/168's. Any thoughts? I have tried the 168 TSX and H4350 and only 63 grs shot decent and that was 3/4"
     
  2. AJ Peacock

    AJ Peacock Well-Known Member

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    My 300WSM (savage 26") shoots lights out with 60gr Varget and a CCI BR-2 primer in norma brass with the 165gr Hornady spbt. But when it gets cold, the Varget gets tough to ignite. I'm working on loads with H4350 and 200gr and 180gr Nosler Accubond.

    AJ
     
    Last edited: Dec 31, 2007

  3. eddybo

    eddybo Well-Known Member

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    VV560 and 168 bergers shoot very very well in my 300wsm.
     
  4. steve4102

    steve4102 Well-Known Member

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    Ramshot Hunter works great in my 300WSMs.
     
  5. HOGGHEAD

    HOGGHEAD Well-Known Member

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    300 Wsm

    I shoot the Sierra 155 grain Palma's in mine. I also use H414. Great accuracy any velocity. Tom.
     
  6. Ray

    Ray SPONSOR

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    Many times; In a hunting weight barrel, with the .300 WSM, if you get to a point you feel that you have tried it all and it still will not group like you want it, you may try tighting up the neck tension on the bullet. Sometimes that will work. Also, you did not say what primers you are using. Primers are a major factor contributing to accuracy, one way or the other. Try at least 3 brands of primers over a chrongraph. Let say that you try, Federal 215GM, CCI 's and Winchester's. Give it all a try. Sometimes with good reloading skills you can go from 3/4" to 1/2" with a primer change. Let us know how it does. Good luck! Ray
     
  7. Blacktail

    Blacktail Well-Known Member

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    Good point i will have to try that. I was using cci large mag rifle. Will have to mix it up.
     
  8. AJ Peacock

    AJ Peacock Well-Known Member

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    I was told by Overbore to use the lightest primer that will give good ignition in the 300WSM. He shoots more 300WSM in a month than most of us will shoot in a year.

    He recommended the CCI BR-2 as his go to primer for the 300WSM.

    Good Luck,
    AJ
     
  9. WunderDog

    WunderDog Well-Known Member

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    eddybo,
    I was wondering if you had charge weights and velocities that you have been getting using VV N560 and the 168 gr bullets. I have had great luck with the VV powders in other rounds but the resources for loads out there are pretty scarce. Thanks
     
  10. goodgrouper

    goodgrouper Well-Known Member

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    I hope you're not trying to make those 180 or 200 grain Accubonds fit into a magazine with H4350! If you are, they must not be loaded to max speeds because you can't get much powder in that case with those long bullets.

    I have found Varget, Imr 4007ssc, and N140 give near 100% load density with these bullets loaded to fit the magazine and you don't lose any velocity.

    I also tinkered with the 180 AB bullet and IMR4831 and Nosler recommended amounts and found that the powder was preventing the bullets from being seated where the die was trying to seat to by .020"!! And after one hour of sitting atop that powder charge, the bullet was pushed out an additional .010"!! And it wasn't just Nosler, all the data I found recommended amounts of powder simply not attainable if the gun's magazine was to be used. FWIW.
     
  11. AJ Peacock

    AJ Peacock Well-Known Member

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    Frankly, I don't worry about the magazine. I load for the barrel and if they fit in the magazine, great. And you are right, I can't put max loads (according to some books) in the 300WSM, it just won't fit unless it is throated longer.

    Thanks,
    AJ
     
  12. eddybo

    eddybo Well-Known Member

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    I would have to go out to the shop and convert my load from powder measure clicks to grains, so I just ran it in quickload. I am thinking I am about 3 grains off quickloads predicted max of 74.5 grains with a predicted velocity around 3250. This is for a 26 inch barrel and coal of 2.860. I would start well below the predicted max and work up.
    I am pretty sure that vihtavouri has load date on thier web page, as I worked up my load before I bought quickload. ....okay I looked and am sure they have it:) Try the link below.


    http://www.vihtavuori-lapua.com/pdfs/Rifle-Reloading-Data-2006.pdf