powders for 300 WSM

Discussion in 'Reloading' started by flyin lizard, Nov 9, 2008.

  1. flyin lizard

    flyin lizard Well-Known Member

    Messages:
    361
    Joined:
    Jan 27, 2008
    Hello gang I just picked up a 300 wsm and would like some ideas on powders to try. I used to have a 30-06 and if memory serves me right IMR 4350 was a good performer. I will be using 165 to 180 gr bullets and deer will be the main target and maybe an unlucky Catskills N Y bear..
    Thanks Paul
     
  2. Shortmagman

    Shortmagman Well-Known Member

    Messages:
    447
    Joined:
    Feb 22, 2008
    I have reloaded the 300 WSM since 2002 and I have found that a number of powders work well with 165-180 gain bullets. My favorite powders are N550, RL-19, and IRM-4831 in that order. IMR-4350 will also work. If you want me to be more specific let me know.
     

  3. snowpro440

    snowpro440 Well-Known Member

    Messages:
    438
    Joined:
    Oct 1, 2008
    this is what works for my eclipse in 300wsm 69 grains rl-22 cci mag primer win cases nosler 180 gr partition = .375 group @ 100 yards . hope this helps you:rolleyes:
     
  4. B23

    B23 Well-Known Member

    Messages:
    1,109
    Joined:
    Oct 30, 2008
    Alliant has developed a new powder just for the WSM and WSSM it's called R-17. It's very hard to find but it offers better FPS than do the others.
     
  5. flyin lizard

    flyin lizard Well-Known Member

    Messages:
    361
    Joined:
    Jan 27, 2008
    Thanks guys I appreciate the info.
     
  6. Turdmucklydunn

    Turdmucklydunn New Member

    Messages:
    3
    Joined:
    Nov 3, 2008
    I have to agree with Shortmagman. The best by far I have found is the N550 and RL-19.
     
  7. Beanfieldrifle

    Beanfieldrifle Member

    Messages:
    23
    Joined:
    Dec 2, 2005
    Also consider H1000, I have good luck with it in my .270WSM. It is not as slow as R22 but slower than the R19. I found a few years back that R19 was a bit inconsistant between lots.

    I will have to look up the R17, never heard of it.
     
  8. B23

    B23 Well-Known Member

    Messages:
    1,109
    Joined:
    Oct 30, 2008
    Did you mean not as slow as RL25 maybe? H1000 is slower than RL22.
     
  9. Tang

    Tang Well-Known Member

    Messages:
    305
    Joined:
    Sep 23, 2008
    Alliant Powder: Reloder 17

    [​IMG]
     
  10. NZP

    NZP Well-Known Member

    Messages:
    48
    Joined:
    Oct 6, 2008
    I had good luck with N-160..you should give that a try. i got good velocity and accuracy with it
     
  11. nite owl

    nite owl Member

    Messages:
    22
    Joined:
    Apr 23, 2008
    Give Ramshot Hunter a try, excellent powder for the 300wsm.
     
  12. WunderDog

    WunderDog Well-Known Member

    Messages:
    57
    Joined:
    Feb 11, 2005
    I have had excellent luck with H4831SC in terms of accuracy and pretty decent velocity. I am running these out of a 15" barrel though so I am somewhat inclined to try a little faster powder to try to maintain accuracy and improve the velocity a bit.
     
  13. BountyHunter

    BountyHunter Writers Guild

    Messages:
    4,803
    Joined:
    Jun 13, 2007
    I just ran some Barnes 168TTSX with RL 17 at 3351 fps and single digit ES and SD and sub .5 MOA accuracy.

    Tested out on MO whitetails this week also.

    BH
     
  14. jbroadnax

    jbroadnax Well-Known Member

    Messages:
    208
    Joined:
    Jan 11, 2006
    I have had great luck with 180 gr AB and 69.0 grs. of Supreme 780. Another great recipe is 70.0 grs of Vit N560 with the same bullet.