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Thread: Powder for 357 Max with 180 - 200 gr bullets

  1. #1
    Boolit Man
    Join Date
    Nov 2012
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    Powder for 357 Max with 180 - 200 gr bullets

    Been reading up getting ready to make the jump into a new to me caliber & rifle . Rifle is a T/C Encore 20" 1 in 16" MGM barrel . According to the numbers my best choices appear to be W296 / H110 , 4227 , Lil Gun , 300MP , VVN-120 , Acc 1680 . Faster such as 2400 , VVN-110 & RS Enforcer probably won't give best velocities without hitting the pressure wall first . Slower like RL 7 & 4198 pretty sure won't get me there either . I can see my Oehler's gonna come in handy . Lucked into 1K each Rem new cases & 180 SJHP for a good price . I already cast the LBT 180 WFNGC which I'm hoping will work out well . I might also get some 358627GC to try . My hopes are cast with an extruded powder ( throat life ) will give me acceptibly accurate with good velocity . Jacketed selection in this size is for the most part too soft ( explosive @ Max speeds ) or too hard ( 35 Rem speed needed ) . For deer they'd probably work just fine , but I primarily hunt hogs . Pass through with blood trail & ability to take out shoulders are what I want . If any want to post data just give a starting load to work from & I can go from there .

  2. #2
    Boolit Master

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    I recall I'M 4227 was the powder for 357max. Been almost 30 year since I was loading it. 300MP would be interesting g to play with in that cartridge.

  3. #3
    Boolit Buddy
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    Feb 2007
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    180
    a1680 with the old 180 Hornady Spire points gave best velocity and accuracy in my handi-rifle reamed to 357 max.
    Call Accurate and they will give you data appropriate to your gun.

  4. #4
    Boolit Master
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    I've been shooting the Max in a Low Wall and an Encore (MGM bbl) for five years now and I have three full pages of bullet/powder ammo tried in both guns. You'll get best results with Rel7, 4227, and 1680 for accuracy and velocity.

  5. #5
    Boolit Buddy
    Dinny's Avatar
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    I find AA1680 to be THE powder for the 357 Max. I have very accurate jacketed loads (26-29gr) and accurate cast loads (23-25gr). As always start lower and work into those weight ranges using SR primers and you'll find a good load. I shot a bear this year with an Accurate 36-270 LFP flying at 1755fps. It put a wallop on that bear!

    Thanks, Dinny
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  6. #6
    Boolit Master



    cwlongshot's Avatar
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    I agree I rarely load ankther powder in my Maxi rifles since discovering AA1680 some twenty years ago.

    Many can work RL7 is a favorite powder but it never did anything for me in the Maxi.

    4227 is a good choice and has worked pretty well.

    One of my best kids for the 358627 bullet came with 2015 powder!! I didnít get the top velocity but accuracy was great! That Maxi has a very deep throat and allowed bullet seating out of the case quite a ways.

    CW
    NRA Life member ē REMEMBER, FREEDOM IS NOT FREE its being paid for in BLOOD.

  7. #7
    Boolit Master

    Hamish's Avatar
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    Mp300
    More "This is what happened when I,,,,," and less "What would happen if I,,,,"

    Last of the original Group Buy Honcho's.

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  8. #8
    Boolit Master



    cwlongshot's Avatar
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    Quote Originally Posted by Hamish View Post
    Mp300
    AWESOME IDEA. Dopes making if dont wanna supply data. So could be best powder created and with no data most loaders wont touch it!!

    I have been searching and asking sending emails calling manufacturer.
    NRA Life member ē REMEMBER, FREEDOM IS NOT FREE its being paid for in BLOOD.

  9. #9
    Boolit Master

    TCLouis's Avatar
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    H110 seemed to do well for me in the 357 Max, just a tad fast.
    I wonder how the Surplus 297 would work since it is listed as slower than 296?
    This is a QUESTION, NOT A LOAD RECOMMENDATION!
    Nothing is impossible for the person that does not have to do it.

  10. #10
    Boolit Buddy
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    VV-N110 works good for me in a 16" barrel, 180-230gr bullets. Yes, it is a bit fast.
    Alcohol Inventory Reduction Specialist (Journeyman Level)

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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