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Thread: Lee TL 356-124-2R

  1. #1
    Boolit Buddy trixter's Avatar
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    Lee TL 356-124-2R

    This is the mold I use for most of my 9mm boolits. By the time they are cooled and powder coated, they weigh in at 129.0 to 129.5. I am loading them with Unique. I've been using 4.2gr, but it seems a little wimpy, just wondering what you would recommend? Oh by the way shooting them out of a SA XDs.

  2. #2
    Boolit Master tazman's Avatar
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    I have an older Alliant manual(circa 2001) that suggests 5.5 grains of Unique for max under a 125 grain lead boolit. I would slowly work up to that charge weight due to differences in boolit weight, OAL, and component differences.

  3. #3
    Boolit Master

    Rcmaveric's Avatar
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    I use 3.5 grains of Tight Group. With that bullet. Works well in all my guns. I did use 4 grains but that was a bit hot.

    Sent from my SM-G925T using Tapatalk
    "Speak softly and carry a big stick; you will go far."
    ~Theodore Roosevelt~

  4. #4
    Boolit Buddy
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    Most of the time I use HP38/W231 to load 9mm but I've used other powders including TG. I cast 125gr plus PC and they end up being about 130gr total. I load 4.2gr of HP38/W231 or 4gr of TG. I dont think 4gr of TG is hot and I would think that many guns wont cycle properly with just 3.5gr. I guess it depends on gun and how strong is your recoil spring. I like HP38/W231 better as it doesnt burn as fast so less pressure spike and i think I get better accuracy out of HP38/W231 but I havent shot TG in 9mm that much.

  5. #5
    Boolit Master popper's Avatar
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    130gr cast with 4gr of WST works great i my XDs9. Slightly snappy recoil but fast followup.
    Whatever!

  6. #6
    Boolit Mold
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    I have settled on 4.5 of unique with 124 in my glock 34. And Rock River at in 9mm.

  7. #7
    Boolit Master Grmps's Avatar
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    DO a ladder test until you find what load is the most accurate in your gun.

    mine like BE best so far

  8. #8
    Boolit Buddy poppy42's Avatar
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    I use the same mold. I’ve loaded and shot over 5000 over 4.9 grains of unique with no problems in either my Ruger 9E or my Kel-Tec PF9. 3.8 to 4 grns is the load I use for my Makarov and my Polish P64 with a 95 grn cast bullet so I could see why you would think 4.2 grains a little light.
    Long, Wide, Deep, and Without Hesitation!

  9. #9
    Boolit Master

    Rcmaveric's Avatar
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    3.5g of Tight Group cycles 5 different 9mm and a few friends 9mm. 4g works good but i am willing to sacrifice some FPS for some accuracy.

    Sent from my SM-G925T using Tapatalk
    "Speak softly and carry a big stick; you will go far."
    ~Theodore Roosevelt~

  10. #10
    Boolit Master tazman's Avatar
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    Quote Originally Posted by Rcmaveric View Post
    3.5g of Tight Group cycles 5 different 9mm and a few friends 9mm. 4g works good but i am willing to sacrifice some FPS for some accuracy.

    Sent from my SM-G925T using Tapatalk
    Smart to do it that way. Mine likes the 4 grain load but that is just my pistol.

  11. #11
    Boolit Master Grmps's Avatar
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    Quote Originally Posted by Rcmaveric View Post
    3.5g of Tight Group cycles 5 different 9mm and a few friends 9mm. 4g works good but i am willing to sacrifice some FPS for some accuracy.

    Sent from my SM-G925T using Tapatalk
    My thoughts exactly, what good is velocity when you can hit the broadside of a barn with it.

  12. #12
    Boolit Buddy
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    4.9 grains of unique is where I settled for a couple of different handguns for reliable cycling, although mine are not the TL version of that mold.

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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