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357 Mag 142gr JHP load data

Discussion in 'Reloading' started by NMG26, Apr 22, 2011.

  1. NMG26

    NMG26

    7,189
    199
    Jul 24, 2010
    NM
  2. NMG26

    NMG26

    7,189
    199
    Jul 24, 2010
    NM

  3. Zombie Steve

    Zombie Steve Decap Pin Killa

    18,083
    18
    May 31, 2007
    Old Colorado City
    What kind of powder / primer are you planning on? I'd just use 140 grain data and be a little more careful near max. 2 grains isn't a huge deal. Let me know what other components you have in mind, and I'll give you what I can...
     
  4. NMG26

    NMG26

    7,189
    199
    Jul 24, 2010
    NM
    The only powder I have is Unique.
    What powder is best for 38 spec and 357 mag jhp and fmj?

    My primers are Remington No. 1 1/2.

    Thanks for the input.
     
  5. WiskyT

    WiskyT Malcontent

    11,682
    1
    Jun 12, 2002
    North Carolina
    Unique is a great powder for both calibers. Speer used to make a 140 JHP. Some of their older manuals will have data for it. If you need data now, you can use 158 jacketed data.
     
  6. Zombie Steve

    Zombie Steve Decap Pin Killa

    18,083
    18
    May 31, 2007
    Old Colorado City
    Unique is a good powder for sure. Top end loads for .357 mag will be with 2400, Blue Dot... something that burns a little slower.
     
  7. fredj338

    fredj338

    21,716
    930
    Dec 22, 2004
    so.cal.
    You can always use heavier bullet data for lighter bullets. So start w/ 158gr powder charge of your choice & work it up. If you have an old Speer manual, they have data for their old 146grJSWC, should be fine.