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Thread: .357 777, or pyrodex

  1. #1
    Boolit Buddy
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    .357 777, or pyrodex

    I'm thinking 358429. Does anyone use those two powders in their .357 rifle. I'd love to know what kind of velocity I can expect. I will be filling the cases to slightly higher than the bullet base. I dont have caliber size ...spacer?...but can pick up a bag of the felt wads if needed. Any info would be appreciated.

  2. #2
    Boolit Buddy


    hpbear101's Avatar
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    https://www.youtube.com/watch?v=wmjr1x6tqMA

    I find 777 to be lot cleaner and easier cleanup than Pyrodex. I loaded some up in 38spl and fired them in a 1851 conversion and it worked fine. I've been experimenting with it in various rifle cartridges.

  3. #3
    Boolit Master
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    the 357 makes a way cool blackpowder round --- 26 grains of FFFg under the LEE 158 flatpoint boolit - cleanup is a cinch, (as all blackpowder cleanups should be) , reloading is deadeasy - if ya wanna get technical can use a juice box wad over the powder - my Rossi 92 shot fine without.

  4. #4
    Boolit Buddy Sam Sackett's Avatar
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    I use APP in my Rossi 92 and Ruger vaqueros. I don’t use any wad, just powder to the base of the 158 RF Bullet. Shoots great, lots of smoke and easy cleanup.

    Sam Sackett

  5. #5
    Boolit Buddy freakonaleash's Avatar
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    real BP works great.

  6. #6
    Boolit Master

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    Triple Seven or Black powder - the only good use for Pyrodex is blowing stumps!
    "We take a thousand moments for granted thinking there will be a thousand more to come. Each day, each breath, each beat of your heart is a gift. Live with love & joy, tomorrow is not promised to anyone......"

    unknown

  7. #7
    Boolit Man
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    You should not compress triple 7 as you would a black powder load. You would measure by volume the same as for black. You can check the Hodgdon web site for load info.

    TGM
    Last edited by TGM; 08-20-2021 at 03:01 PM. Reason: to make it more clear

  8. #8
    Boolit Buddy
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    Thanks gang, what velocity can I expect. I'm going to try ffg triple 7 and pyrojunk in my rifle because I don't have any stumps. Thanks again.

  9. #9
    Boolit Master
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    Quote Originally Posted by salvadore View Post
    Thanks gang, what velocity can I expect. I'm going to try ffg triple 7 and pyrojunk in my rifle because I don't have any stumps. Thanks again.
    sell the pyrojunk to somebody you dont like .

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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