2400 in the .357 magnum

Discussion in 'Reloading' started by smiley, Oct 24, 2020.

  1. smiley

    smiley

    Messages:
    2,032
    Likes Received:
    37
    Joined:
    Jun 17, 2005
    Location:
    east coast
    hi guys, checking to see if anyone uses 2400 in there colt .357 magnums .

    any advise, many thanks,

    please post.
     
  2. Collo Rosso

    Collo Rosso

    Messages:
    2,584
    Likes Received:
    3,360
    Joined:
    Jul 22, 2009
    Location:
    Upstate S.C.
    Don't use it in Colt 357's, but I do load S&W 357's with 2400...
    Just kidding. Good powder for upper end loads that can be down loaded some. Not the "all or nothing" of W296/H110. I have come to prefer #9 though.
     
    Glolt20-91 and byf43 like this.

  3. smiley

    smiley

    Messages:
    2,032
    Likes Received:
    37
    Joined:
    Jun 17, 2005
    Location:
    east coast
    howdy , I was given 3 5 lb kegs, I may have life time supply
     
    Glolt20-91 and byf43 like this.
  4. FGWinFLA

    FGWinFLA Who me?

    Messages:
    189
    Likes Received:
    137
    Joined:
    May 12, 2012
    Location:
    Not sure myself...
    I asked a similar question a few years ago when I took the plunge into the wonderful world of wheel guns.

    A couple guys here said "try 2400, work your loads up and give it a little crimp to hold it all together.

    Been using 2400 since then and haven't looked back. I use it for 357 mag with 6" barrel, 4" barrel, with 125gr, 140gr and 158gr.
    A nice flexible powder for the 'ol 357.
     
    Glolt20-91 and SBray like this.
  5. nitesit(+ an e)

    nitesit(+ an e) Farmer, House Sitter and Cook

    Messages:
    5,667
    Likes Received:
    6,813
    Joined:
    Jun 9, 2006
    Location:
    North Alabama
    It is THE powder reloaders have used for DECADES with the .357 Magnum.

    Something out there might be a tiny fraction better, but 2400 has fueled more .357 Magnum cartridges than any other powder on the planet.
     
    SBray, hannstv and Taterhead like this.
  6. sig357fan

    sig357fan

    Messages:
    1,919
    Likes Received:
    1,027
    Joined:
    Apr 8, 2008
    Location:
    SW OH
    gotta agree with what's been posted so far, its the powder for experimenters in mag calibers, like said earlier, not an all or nothing like other powder and in my opinion, the goto powder for cast bullets in magnum cartridges, been using it for almost 30 years.
     
    Last edited: Oct 24, 2020
    Taterhead likes this.
  7. papercidal

    papercidal

    Messages:
    735
    Likes Received:
    458
    Joined:
    Jun 7, 2012
    Location:
    Vancouver,Wa
    There may be better newer powders but Elmer Keith touted it as the best powder available for.357 back in the 30s so there’s the better part of a century worth of load data out there.
     
    byf43 and fredj338 like this.
  8. phonejack

    phonejack

    Messages:
    922
    Likes Received:
    476
    Joined:
    Jun 28, 2009
    Location:
    arkansas
    It’s my preferred powder for .357 and .44 magnum.
     
    FlyfishermanMike and byf43 like this.
  9. smiley

    smiley

    Messages:
    2,032
    Likes Received:
    37
    Joined:
    Jun 17, 2005
    Location:
    east coast
    hi guys , i use in my twin .41 magnum model 58's
     
    Taterhead likes this.
  10. Taterhead

    Taterhead

    Messages:
    6,766
    Likes Received:
    4,120
    Joined:
    Dec 13, 2008
    Location:
    Idaho
    Man, THAT would be a cool addition to collection. 41 Mag holds some intrigue for me. Some day...
     
  11. George Kaplan

    George Kaplan emeritus

    Messages:
    3,046
    Likes Received:
    5,204
    Joined:
    Dec 27, 2015
    Agreed. A .41 will be a present to myself after Trump is re-elected.
     
    SBray and Taterhead like this.
  12. Samuel_Hoggson

    Samuel_Hoggson

    Messages:
    360
    Likes Received:
    234
    Joined:
    Jan 27, 2013
    For some reason some people became convinced you need a magnum primer to ignite 2400, as with 296. But not true, and Keith was pretty clear about that. I started using it around '70.

    Anyway, 2400 on hand is better than 300MP located on inter-plan-et Unobtainium. Plenty of horsepower to be had for most purposes with 2400. Whether "improved" or old stuff.
     
  13. KYBoy

    KYBoy

    Messages:
    28
    Likes Received:
    36
    Joined:
    Jan 22, 2013
    Add me to list of 2400 users. Both .357 and .44 Mag.
     
  14. smiley

    smiley

    Messages:
    2,032
    Likes Received:
    37
    Joined:
    Jun 17, 2005
    Location:
    east coast
    no magnum primers , mmmmmmm
     
  15. SBray

    SBray NRA & Second Amendment Life Member

    Messages:
    1,561
    Likes Received:
    750
    Joined:
    May 5, 2012
    Location:
    Loomis, California
    I’ve loaded 2400 for my Winchester lever action and my brothers S&W 6” model 686. I’ve used both standard and magnum primers without any noticeable difference.

    Steve
     
  16. smiley

    smiley

    Messages:
    2,032
    Likes Received:
    37
    Joined:
    Jun 17, 2005
    Location:
    east coast
    hi guys , just a thought wonder what the difference in velocity would be between 2400 with standard or magnum primers ??

    just a thought
     
  17. Samuel_Hoggson

    Samuel_Hoggson

    Messages:
    360
    Likes Received:
    234
    Joined:
    Jan 27, 2013
    There are significant pressure differences. This was brought to light.......thinking 20-30 yrs or so ago......might have been Scovill or Pearce. Do not use Keith's data substituting magnum primers. Manuals often specify magnum primers with significantly reduced powder charges of 2400.

    Tough to quantitate the effect on velocity. Personal experience with .44 Mag suggests well over 100 fps variance is quite possible. That was before people started talking/writing about this.

    Interestingly, recently witnessing a similar "rethink" with the Hornet. Some sources deciding small pistol primers are best. OK, but pay serious attention to powder charge data.

    Suppose I sound parental, but blithe component swaps have resulted in interesting threads.
     
  18. fredj338

    fredj338

    Messages:
    34,871
    Likes Received:
    14,258
    Joined:
    Dec 22, 2004
    Location:
    so.cal.
    2400 is my go to powder for hotter loads in any of my 357mags. It is more forgiving than H110/W296 & doesnt require a mag primer.
     
    byf43 likes this.
  19. fredj338

    fredj338

    Messages:
    34,871
    Likes Received:
    14,258
    Joined:
    Dec 22, 2004
    Location:
    so.cal.
    There can be a significant diff in vel/pressures going to a mag primer with slower powders. So dont just plug & play.
     
  20. fredj338

    fredj338

    Messages:
    34,871
    Likes Received:
    14,258
    Joined:
    Dec 22, 2004
    Location:
    so.cal.
    Only if you shoot less than about 1700rds??:cheers: