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Thread: Best Lee die for 300 Blackout?

  1. #1
    Boolit Mold
    Join Date
    Mar 2020
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    29

    Best Lee MOLDS for 300 Blackout?

    I've read threads saying the TL309-230-5R has stability issues & undersized for a lot of people. Lee also makes .30 cal molds from 113 to 200 grain. If you're not going for subsonic, is any of these better than the rest for .300 Blackout?

    What about their 7.62x39 bullets, the C312-155-2R or CTL312-160-2R - if you're going to powdercoat and shoot supersonic, is the tumble lube or traditional groove the better choice?

    C312-185-1R a contender?
    Last edited by NavyGuns45; 12-13-2020 at 01:02 AM.

  2. #2
    Boolit Buddy
    Join Date
    Sep 2020
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    You need to slug your barrel first and avoid the speculation.

  3. #3
    Boolit Buddy
    Join Date
    Oct 2019
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    Panhandle of WestbyGodVirginia
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    234
    You should edit your thread title to say molds, not dies.

  4. #4
    Banned
    Join Date
    Dec 2018
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    3,409
    NavyGuns45 You can ask a moderator to change the title of your thread.

    My "heavies are from NOE, can't help you there but

    I have good results with the C312-155-2R over H-110 at 1045 fps

  5. #5
    Boolit Master
    Join Date
    Mar 2016
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    SE MISSOURI
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    969
    I have good results with the lee .312 160 tl 2R bullet but only in different 30 cal’s. 308, 7.62/39 30/30

  6. #6
    Boolit Master


    cwlongshot's Avatar
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    Jul 2012
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    Central Connecticut
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    3,729
    We have seven different 300 BO firearms.
    Two different 230g molds where crap in these guns.

    ALL OF THEM shot the 155g well to VERY WELL!

    CW
    NRA Life member • REMEMBER, FREEDOM IS NOT FREE its being paid for in BLOOD.
    Come visit my RUMBLE & uTube page's !!

    https://www.RUMBLE.com/user/Cwlongshot
    https://youtube.com/channel/UCBOIIvlk30qD5a7xVLfmyfw

  7. #7
    Boolit Buddy Texas Gun's Avatar
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    Sep 2020
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    Has anybody ever tried shooting the 30 carbine bullets out of 300 blackout the 110 Gr

  8. #8
    Boolit Master RU shooter's Avatar
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    Nov 2006
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    SW Pa.
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    I've used the 155/160 sks bullets the 185 and also the 150 fn and the 160 rn all shot well at regular speeds . If you plan on powder coating it's gonna increase the nose dia on all of them so keep that in mind when looking for a bullet
    If you find yourself in a fair fight, your tactics suck!

  9. #9
    Boolit Master

    Fishman's Avatar
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    May 2010
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    Waco, Texas
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    2,103
    The Lee 155 shoots well but if you have a tight throat they can be a bit of a pain, especially if you powder coat. I liked them well enough to buy the NOE version with the flat tip and it shoots just a well. I run them with H110.
    "Is all this REALLY necessary?"

  10. #10
    Boolit Master 6622729's Avatar
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    Jun 2015
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    579
    I'm shooting the Lee 230gr to MOA at 100yds in Ruger American Ranch bolt action rifle in MDT LSS chassis. The boolits are dropping undersize and out of round (.308 x .312) in Lyman #2 alloy from the Lee 2 cavity mold. However, 2 coats of powder coat then sized at .309 they become round and fly great with AA1680. Chrono'd at 1170fps.

    Click image for larger version. 

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    Last edited by 6622729; 11-17-2020 at 11:30 PM.

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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