Looking for Midrange load for 357 and LSWCHP 158Gr

Discussion in 'Handloading and Reloading' started by BKS, Apr 11, 2021.

  1. GeoDudeFlorida

    GeoDudeFlorida Member

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    Kudos for pointing that out! That's why the bullet matters. Linotype vs. Alloy #2 vs. Swaged/Soft lead behave completely differently when they hit the forcing cone and rifling.
    Lyman #2 Alloy is 5% tin, 5% antimony, and 90% lead (15 BHN) . Linotype is generally 4% tin, 12% antimony, and 84% lead (20 to 22 BHN).

    All components matter.
     
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  2. BKS

    BKS Member

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    8C921AE2-0A17-4E29-B07F-4789AD3BC677.jpeg I appreciate the replies. I actually loaded some last night with various loads. Gonna get to try my new chronograph out soon I hope.

    here are the bullets

    I’ll be shooting these out of a pair of 3” guns a J frame and a L frame
     
    Last edited: Apr 12, 2021
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  3. forrest r

    forrest r Member

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    You're going to be surprised just how low the velocities will be in those short bbl'd revolvers.

    I use a full house load of 2400 in my 586 l-comp to get 1200fps from a cast/coated 158gr hp.
     
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  4. SunnySlopes

    SunnySlopes Member

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    2400 is a pretty slow powder. Maybe you should try a faster powder so that more powder will ignite before it hits the atmosphere.
     
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  5. bear166

    bear166 Member

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    You should probably have something that will do the trick in that list, but I'll throw Universal in the hat in case none of them work out. I've found it to be very good for practically every application in pistol loading. Hodgdon lists the starting load at 890 FPS, and it can be taken all the way up to 1,247. I personally use it for mid-power .357 loads with good results.
     
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  6. forrest r

    forrest r Member

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    Why???
    So my loads will even be slower than 2400!!!

    Perhaps you should consider doing some real world testing. There are powders that out perform others with p+ level loads in several different calibers. When it comes down to high pressure loads in short bbl'd 357's, the cream rises to the top.
     
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  7. SunnySlopes

    SunnySlopes Member

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    2400 is a slow powder. It takes longer to ignite and longer barrels are desirable. In a short barreled gun, to which you earlier alluded, it's mostly going to ignite after it exits the barrel. A faster powder is desirable for short barreled guns. I personally use Unique. Google "relative burn rates" for more info.
     
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  8. murf

    murf Member

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    i can't let this one go: all pistol powders are "fast", no powder burns outside the barrel as "all burn" occurs when the bullet has moved about an inch, @forrest r is trying to be nice and, i agree, the only way to gauge velocities is over a chronograph.

    regarding the op, you will need the 2400 powder to get 1200 fps out of a three inch barrel.

    luck,

    murf
     
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  9. Armored farmer

    Armored farmer Member

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    I load 6.2gr Unique under 158gr under my cast LNFP.
    The load works well in everything from my 2⅛" sp101 to my 1894c carbine.

    Not too wild, not too mild~ 20210131_142147.jpg 20160824_184852.jpg
     
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  10. forrest r

    forrest r Member

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    No big deal, most people parrot what they read or assume things, that's all.

    I just find it odd that a lot of people don't do any real world testing with their snubnosed/short bbl'd firearms. +/- 100fps doesn't mean mush with a longer bbl'd firearm. But the same loads can make a huge difference when it comes to bbl lengths.

    Myself, I own that snubnosed 357 for a reason and did extensive testing with different powder/bullet combo's. Made extra loads and tested them in 4", 6", 8" & 10" bbl'd 357's while I was testing in the snubnose.
     
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  11. murf

    murf Member

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    you understand this, but a lot of onlookers may not. the chrony tells the tale.

    murf
     
  12. joneb

    joneb Member

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    I'd work with the Unique then, The HS-6 seems to do better for me with magnum primers for 38 spl and 357 mag. with 158gr bullets.
     
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  13. Legionnaire
    • Contributing Member

    Legionnaire Member

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    Another vote for Unique.
     
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  14. Reeferman

    Reeferman Member

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    For my 38 or 357 revolvers 6.0 grains of HS6 in a 38 case with a 158 grain bullet and a magnum primer is just unbelievably accurate.
     
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  15. BKS

    BKS Member

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    Got to the range today. 3” 686+ 10’ from Chrono
    Temp in the 60s
    WSP in all loads.

    Averages of 5 shots
    12.5grs of 2400 1145
    6.5 grs of Unique 1067
    8.5grs of HS6 1077
    5.5grs of 231 994

    all cases easily ejected.
    2400 had that signature flash
    HS6 and Unique burned well just “sooted” up the gun.

    got rained out before I could really check accuracy.

    The 12.5gr 2400 old was about 150fps faster in my 8 3/8” 686
     
    Last edited: Apr 18, 2021
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