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357 Mag 142gr JHP load data

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


  1. NMG26

    NMG26
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  2. NMG26

    NMG26
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    OOps.

    142 grain FMJ

    Sorry.
     

  3. Zombie Steve

    Zombie Steve
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    Decap Pin Killa

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    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. Zombie Steve

    Zombie Steve
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    Decap Pin Killa

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  5. NMG26

    NMG26
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    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.
     
  6. WiskyT

    WiskyT
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    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.
     
  7. Zombie Steve

    Zombie Steve
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    Decap Pin Killa

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    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.
     
  8. fredj338

    fredj338
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    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.