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Thread: 9.3x57 loads?

  1. #1
    Boolit Mold
    Join Date
    Jun 2024
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    9.3x57 loads?

    Anyone have any 9.3x57 load data to pass on? Does anyone have experience with lead bullets in this caliber?

  2. #2
    Boolit Master
    Join Date
    Nov 2022
    Location
    Middle Tennessee for now. Want to buy land out west, somewhere cool and dry!
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    Welcome to the forum!

    I quickly glanced at the Hodgdon data center and the Vihtavuori app and neither had data. Much less cast data.

    Where are you? What brand powder do you have access to? What’s your experience level? In the simplest of terms, if you take the same cartridge and increase the bore size, you get higher velocity in the larger bore with an equal bullet weight. The bullet is a bigger “piston” for the gasses to push on.

    All that said, if I was desperate, I’d consider load data from the parent cartridge of the smaller bore with the same bullet weight in the larger bore. Absolutely never the other way around.

    I’m sure some others will chime in, once they get coffee going and get you much better information than above.

  3. #3
    Boolit Master
    Join Date
    Jun 2007
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    Middle of the Mitten
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    Quote Originally Posted by Barry54 View Post
    Welcome to the forum!

    I quickly glanced at the Hodgdon data center and the Vihtavuori app and neither had data. Much less cast data.

    Where are you? What brand powder do you have access to? What’s your experience level? In the simplest of terms, if you take the same cartridge and increase the bore size, you get higher velocity in the larger bore with an equal bullet weight. The bullet is a bigger “piston” for the gasses to push on.

    All that said, if I was desperate, I’d consider load data from the parent cartridge of the smaller bore with the same bullet weight in the larger bore. Absolutely never the other way around.

    I’m sure some others will chime in, once they get coffee going and get you much better information than above.
    Surely milder loads will result if using like same Projectile weight, but 8X57 loads.... Kinda like "starting loads"

  4. #4
    Moderator
    Texas by God's Avatar
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    .358 Winchester data for similar weight bullets would be a start.


    Sent from my iPhone using Tapatalk

  5. #5
    Boolit Mold
    Join Date
    Jun 2024
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    Thanks!

  6. #6
    Boolit Mold ttd444's Avatar
    Join Date
    Nov 2021
    Posts
    25
    in my Husqvarna m46 in 9.3x57 i load a 275gr WFN GC with IMR4895. i'd start with 39.0gr and go up from there.

    https://www.gunboards.com/threads/9-...7+chamber+.370

    https://castboolits.gunloads.com/sho...85-grain-GC-FP

    https://castboolits.gunloads.com/sho...t-loads-9-3x57

    https://www.gunboards.com/threads/ha...bullets+9.3x57


    there is a bunch of articles that reload for jacketed bullets, but cast boolits is hard to find.
    Russian Admiral said, after the Moskva sank, "we have the world's worst navy but we aren't as bad as our army".

    US Army 12B & 51B

  7. #7
    Moderator Emeritus


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    Check Lyman # 41 and 39 for 9x57 loads. You can start there.
    [The Montana Gianni] Front sight and squeeze

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Abbreviations used in Reloading

BP Bronze Point IMR Improved Military Rifle PTD Pointed
BR Bench Rest M Magnum RN Round Nose
BT Boat Tail PL Power-Lokt SP Soft Point
C Compressed Charge PR Primer SPCL Soft Point "Core-Lokt"
HP Hollow Point PSPCL Pointed Soft Point "Core Lokt" C.O.L. Cartridge Overall Length
PSP Pointed Soft Point Spz Spitzer Point SBT Spitzer Boat Tail
LRN Lead Round Nose LWC Lead Wad Cutter LSWC Lead Semi Wad Cutter
GC Gas Check