.458 Win Mag powder

Discussion in 'Reloading' started by Quaticman, Nov 7, 2019.

  1. Quaticman

    Quaticman AH Member

    Joined:
    Feb 20, 2018
    Messages:
    40
    Video/Photo:
    8
    Likes Received:
    65
    Location:
    Kitchener
    Hunted:
    Namibia
    What is your "go to" powder for the .458 Winchester Magnum with 500 grain bullets?
     

  2. BenKK

    BenKK AH Elite

    Joined:
    Jan 8, 2018
    Messages:
    1,052
    Video/Photo:
    146
    Likes Received:
    1,274
    Location:
    Northern Territory, Australia
    AR2206H
     

  3. larry4831

    larry4831 AH Enthusiast

    Joined:
    May 26, 2015
    Messages:
    499
    Likes Received:
    302
    Member of:
    NRA
    Accurate 2460
     

  4. fourfive8

    fourfive8 AH Fanatic

    Joined:
    Apr 27, 2017
    Messages:
    709
    Video/Photo:
    78
    Likes Received:
    878
    Hunted:
    USA, South Africa, Mozambique, Zimbabwe, Zambia, Botswana
    Benchmark
     

  5. BenKK

    BenKK AH Elite

    Joined:
    Jan 8, 2018
    Messages:
    1,052
    Video/Photo:
    146
    Likes Received:
    1,274
    Location:
    Northern Territory, Australia
    I heard that some factory ammunition gets good velocity by either blending powders to a secret recipe, or using some kind of secret powder. Any thoughts on this?

    I’m not too worried, I’ll cheerfully use 2206H and am happy with the results.
     
    MS Hitman likes this.

  6. fourfive8

    fourfive8 AH Fanatic

    Joined:
    Apr 27, 2017
    Messages:
    709
    Video/Photo:
    78
    Likes Received:
    878
    Hunted:
    USA, South Africa, Mozambique, Zimbabwe, Zambia, Botswana
    IIRC, ADI AR 2206H is equivalent to 4895 and AA 2460
     

  7. C.W. Richter

    C.W. Richter AH Veteran

    Joined:
    Aug 23, 2017
    Messages:
    146
    Video/Photo:
    31
    Likes Received:
    123
    Location:
    Pocono Mtns., PA USA
    Member of:
    PA SCI, Various Endless Mtns., PA Region Clubs
    Hunted:
    Zimbabwe 2x, Namibia 2x, RSA 2x, USA, Canada
    I've tried them all...nothing impressive-always in the 2,000-2,150ish fps range (even w/ longer 450 gr Barnes bullets.) :( Traded in favor of the PERFECT .416 Chatfield-Taylor.
    450 Barnes Ramshot TAC
    73.5
    2,178
    4,742

    500 Federal Ramshot TAC
    67.0
    2,083
    4,819

    I do recall the great Woodleigh bullets being the shortest, so try those with the max, compressed powder loads and you'll prob have slightly better success. Kevin Robertson is dead-on about this short mag's limitations. Use the 450 gr bullets to get the velocity up to the effective minimums. My son shot a buff with one once (after we got to within 20 yards!) ;) Ok as a stopping round, only because those sorts of distances are ok with it. (TAC is made by the same co. as Western, AA-all very similar, denser, more compressible grain-sized powders).
     

  8. C.W. Richter

    C.W. Richter AH Veteran

    Joined:
    Aug 23, 2017
    Messages:
    146
    Video/Photo:
    31
    Likes Received:
    123
    Location:
    Pocono Mtns., PA USA
    Member of:
    PA SCI, Various Endless Mtns., PA Region Clubs
    Hunted:
    Zimbabwe 2x, Namibia 2x, RSA 2x, USA, Canada
    Not surprisingly, the gun was very accurate and a pleasure to shoot relative to most big bore carridges!!!
     

  9. perttime

    perttime AH Veteran

    Joined:
    Jan 3, 2019
    Messages:
    168
    Video/Photo:
    1
    Likes Received:
    90

    Attached Files:


  10. Ridge Runner

    Ridge Runner AH Enthusiast

    Joined:
    Mar 23, 2017
    Messages:
    301
    Video/Photo:
    13
    Likes Received:
    283
    Hunted:
    East Cape, South Africa
    I use H335 and Accurate 2230 in my Zastava .458 WM. At near Max loads I get an average, 5 shots, 2140 fps shooting Hornady 500 grain DGS and DGX bullets.
     
    BenKK likes this.

  11. meigsbucks

    meigsbucks AH Fanatic

    Joined:
    Feb 5, 2011
    Messages:
    724
    Video/Photo:
    16
    Likes Received:
    628
    Location:
    Central Ohio
    Member of:
    SCI, NRA Life Member
    Hunted:
    Zimbabwe and Namibia
    H335 and RL7
     

  12. Jeffrey

    Jeffrey AH Veteran

    Joined:
    Jan 10, 2019
    Messages:
    120
    Likes Received:
    108
    Location:
    Louisiana / Zimbabwe
    Member of:
    NRA
    Hunted:
    Zimbabwe, Louisiana, Mississippi
    A few books, including Hornady (possibly Nosler as well?), indicated H335 as ideal, so that's all I've ever used. Starting load in Hornady is 67.5, maxing at 76.3.

    Does anyone have any good data for a 500gr Gas Checked cast bullet load for the 458WM or 458Lott??
     

  13. Quaticman

    Quaticman AH Member

    Joined:
    Feb 20, 2018
    Messages:
    40
    Video/Photo:
    8
    Likes Received:
    65
    Location:
    Kitchener
    Hunted:
    Namibia
    I also have a Zastava M 70 and will be using the same Hornady bullets.
     

  14. IvW

    IvW AH Elite

    Joined:
    Dec 20, 2016
    Messages:
    1,993
    Video/Photo:
    57
    Likes Received:
    3,227
    Location:
    South Africa
    Member of:
    BASA, CHASA
    Hunted:
    South Africa, Zimbabwe, Mozambique, Botswana, Namibia,Zambia
    458 LOTT...
     

  15. 457121

    457121 New Member

    Joined:
    Aug 5, 2019
    Messages:
    1
    Likes Received:
    0
    Location:
    USA
    Member of:
    NRA, CBA
    Using the Accurate Mold 46-500L2 I have tried the following:

    65.0 gr IMR 3031 for 2038 fps
    69.0 gr IMR 3031 for 2150 fps
    65.0 gr IMR 4064 for 1940 fps
    74.0 gr H4895 for 2218 fps
    72.0 gr Ramshot X-terminator (Belgium production) for 2116 fps
    74.0 gr Norma 202 for 2093 fps
    74.0 gr RL-15 for 2044 fps
    76.0 gr. RL-15 for 2096 fps
    64.0 gr RL-7 for 2010 fps
    all velocities taken @ 15 feet from chrony out of 24" barrel

    Check out the Accurate Mold website for dimensional drawing of the bullet. It has two crimp grooves and a full diameter nose to help fill the 458WM throat. IMR 3031 really shines on 1900-2000 fps practice type loads. I use data for the old Hornady 500gr RN soft point as a reference when working on loads.
     

Share This Page

 
  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice