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Thread: What powder for the 300 win mag ?

  1. #1

    Question What powder for the 300 win mag ?

    Hi i am just about of powder for my 300 wm as the stuff is now so dam expensive the days of getting a few tubs of different powder to see which works best are gone.
    on reloader 19 and it did ok not brilliant but ok just wondering if a pattern emerges for a good powder for the 300 win mag so what’s worked best for you in the 300?
    Thanks JD
    Alliant Powder - Reloader's Guide
    Last edited by johndeere; 05-07-2013 at 22:37.

  2. #2
    I have the variation but not the rifle.
    RL19 sounds a bit quick IMO

    I was working on the basis that it was a slightly slower powder than my 270 which is RL22, N160 territory

    I have some N165 in preparation for above 180gr bullets but N160 would work a charm in the 150-180gr range

    http://www.lapua.com/en/products/rel.../relodata/5/76

  3. #3
    I done a load for a friend, 155gn amax with 75gn RL22, CCI standard primer, very nice to shoot, I think it was running at about 2600 fps

  4. #4
    SD Regular johngryphon's Avatar
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    Quote Originally Posted by Akeld View Post
    I done a load for a friend, 155gn amax with 75gn RL22, CCI standard primer, very nice to shoot, I think it was running at about 2600 fps
    ​thats seems as slow as a wet week.
    "you nae be needing these no more"
    I said as I slipped the knife through the cord

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  5. #5
    Quote Originally Posted by Akeld View Post
    I done a load for a friend, 155gn amax with 75gn RL22, CCI standard primer, very nice to shoot, I think it was running at about 2600 fps
    Would have no problem losing a few 100 fps in pursuit of a really accurate load thanks
    will be on 180 grain
    Last edited by johndeere; 06-07-2013 at 07:14.

  6. #6
    I have tried N160, reloader 19 & 22. But my best results were with Imr 4350 and when that ran out I was getting the same performance with less powder from H4350.

  7. #7
    Quote Originally Posted by johngryphon View Post
    ​thats seems as slow as a wet week.
    Might have been faster, don't have the data since he switched to 7WSM

  8. #8
    Quote Originally Posted by Akeld View Post
    I done a load for a friend, 155gn amax with 75gn RL22, CCI standard primer, very nice to shoot, I think it was running at about 2600 fps
    agree that sounds very low for that charge weight and bullet
    RL22 is very similar to N160 in burn rate and volume. also tends to produce similar velocities

    same load of N160 would be up around the 3000fps mark even with a shorter barrel

    I plan on using 180gr plus

  9. #9
    Quote Originally Posted by bewsher500 View Post
    agree that sounds very low for that charge weight and bullet
    RL22 is very similar to N160 in burn rate and volume. also tends to produce similar velocities

    same load of N160 would be up around the 3000fps mark even with a shorter barrel

    I plan on using 180gr plus
    Like I say, "I Think", could have been 2900 but as I no longer load for that calibre I've no need to remember

  10. #10
    I always got excellent accuracy and good velocities with RL22 and either IMR or Hodgon 4831. I never used bullets under 180 grs in weight though.Unfortunately I haven't used 165's or 150's so I couldn't recommend any powders for those weights.

    AB

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