.300 Win Mag

Discussion in 'Reloading' started by Clint Tyler, Dec 24, 2007.

  1. Clint Tyler

    Clint Tyler Member

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    Jan 30, 2006
    What are some of the loads you are using for the .300 Win mag and a 180gr bullet. also what are the group sizes I am having a hard time getting mine to shoot under 1" at 100 yds. So far I have used RL 22 and IMR 4350.

    Any Info would be helpful.
     

  2. Nomad

    Nomad Banned

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    Jul 1, 2007
    Use 200 gr for all my shooting
     

  3. jamaro

    jamaro Well-Known Member

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    Dec 24, 2007
    Clint... I just started reloading so take EVERYTHING with a grain of salt... BUT for me I it was all about Seating Depth, then trying different amounts of powder... I have a non-comerical website The New Mexico Sportsman that goes over some of the issues that I had to work thru...

    Jason
     
  4. stxhunter

    stxhunter Well-Known Member

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    i use 79 gr h4831 with the 180 gr accubond seated at 3.34 velosity avg is 3106 fts i have shot several sub 2 1/2 3 shot groups at 500 yd and one group that was 1 1/2 inchs at 500 this is a custom built rifle. start lower and work up 79 gr is max in my rifle
     
  5. mikebob

    mikebob Well-Known Member

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    I shot 75.5gr re22 with 180 AB seated to fit clip, 1/2" group at 100. You might try H4831SC it is a good powder for 180gr.
     
  6. johnnyk

    johnnyk Well-Known Member

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    Clint,
    I owned a Sendero in .300WM back in 2001 and here is some of the load data that I recorded while working up loads for that rifle.
    In March of that year I tried; 180gn Nosler Ballistic Tip (NBT)/once fired Rem. brass/CCI BR2/75.5gn RL22/.3400" (3shot groups).
    May 2001; 180gn NBT/Rem case/Fed 210 LR/75.5gn H4831SC/.6605"
    180gn NBT/Rem case/CCI BR2/76.0gn RL22/.4765"
    June 2001; 168gn Speer HPBT Match/Rem case/CCI BR2/74.0gn
    RL19/.3250"
    180gn NBT/Rem case/CCI BR2/71.0gn of IMR4350/.476"
    Hope this little bit of info helps. JohnnyK.
     
  7. papa45

    papa45 Well-Known Member

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    Feb 22, 2005
    180 gr Accubond and 70.0 gr IMR 4350, 2980 fps, .015" off the lands, just under 1" groups.
     
  8. 30-06 boy

    30-06 boy Well-Known Member

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    clint,try a google search for riflebarrels.com.its a site for dan llija rifle barrels,has a page on long range rifles,loads,bullets,etc.very good info.i dont shoot 180's in my 300wm.200 gr or heavier to get real good bc and retained energy.just a thought----"how far can you throw a feather"?jason

    i also dont use magnum primers anymore.i use cci br2 primers.better extreme spread between shots=smaller groups at long range.
     
    Last edited: Dec 24, 2007
  9. chain

    chain Well-Known Member

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    Dec 28, 2004
    Mine will shot 180 0r 200 gr Accubonds essentially the same with the max load of RL -22. Shot 180's this year now working with the 200's, as I think the next time that rifle goes to the field it will be for elk. If I am on my game both will shoot in the .5's out of my factory barrel savage.
     
  10. woods

    woods Well-Known Member

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    I reload for 7 different 300 win mags and 75.5 gr RL22 works very well in all. It is the "Most Accurate Powder Tested" in the Nosler #5 manual.

    However, I have been having excellent results with the 200 gr Accubond and 76 gr RL25. About 2950 fps and exceptional accuracy.