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Thread: .357 mag, 170 gr Kieth, 2400 powder

  1. #21
    Boolit Master zymguy's Avatar
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    Quote Originally Posted by hockeynick39 View Post
    I am showing 14.9 gr Alliant 2400 and 1.570" crimped or 15 gr Alliant 2400 and 1.590" crimped with a 170 gr Lyman 358429 sized to .358 for a 6" S&W Model 27.
    I ask in no way doubting , but because Im always hunting cast bullet sources which book?

  2. #22
    zymguy,

    The Lyman Reloading Handbooks, 46th and 49th Editions, and the Lyman Cast Bullet Handbook, 3rd Edition, list a maximum charge of 13.5 grains of 2400 with the Lyman 358429 bullet. I don't have my other Lyman books handy but I think they recommend the same maximum charge. I have used that load in several revolvers over the years and it is very accurate but it is definitely a maximum charge in my guns. I do not have the information available regarding other details of the load.

    Gus Youmans

  3. #23
    Boolit Master
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    13.5 gr of 2400 was Mr Keith's load ,I wouldn't argue with that .

  4. #24
    Boolit Master
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    I believe the 13.5 load was using 38spec. brass (the bullet was designed for the 38/44) that would be a scary load. I use 12 grains in 38 special brass for around 1200fps with my chrony. I shot a 3" 50yd group a few years ago, pretty good for a geezer that can't see.

  5. #25
    Boolit Master


    fecmech's Avatar
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    That 13.5 gr load in Lyman Cast Bullet Handbook, 3rd Edition was a 41,000 cup load and crimped on the front drive band for an oal of 1.553". It was only .013" longer than a .38 special case crimped in the crimp groove. Definitely a max .357 load! I shot a lot of that load but taper crimped on the front drive band with an oal of 1.640 to fit my Ruger cylinder. It was accurate but I had better accuracy using 15/296 or H110 at that oal.
    "Of all tyrannies, a tyranny sincerely exercised for the good of its victims may be the most oppressive. It would be better to live under robber barons than under omnipotent moral busybodies. The robber baron's cruelty may sometimes sleep, his cupidity may at some point be satiated; but those who torment us for our own good will torment us without end for they do so with the approval of their own conscience."
    - C. S. Lewis

  6. #26
    Boolit Master

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    Another observation on the Lyman 49th data, there are different sections for rifle, generic handgun and Contender loads.
    Overall length for rifle & handgun is listed as 1.553", for the Contender it's 1.647".
    Maximum loads for 2400 is identical for all three. Same thing with other powders.
    ..

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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