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Thread: New Blackout sub bullet

  1. #1
    Boolit Mold
    Join Date
    Mar 2014
    Location
    Central Arkansas
    Posts
    11

    New Blackout sub bullet

    I'm new to the 300 Blackout having just built my first one with an 8.5" barrel.
    That said, I have had 4 Lee TL309-230-5R molds so far (another one should be here tomorrow). All cast way undersized. Lee said it was my casting technique or lead temp, but I was casting in two other Lee molds at the same time , a 9mm and a 45apc and they both cast 1 to 1.5 thousands over stated size while the TL309-230-5R was consistently under on an average of 3 to 4 thousands. I I use an air powered setup for sizing but the only force needed to put these bullets through the .309 sizer was pushing another bullet into it by hand.
    I even sent one of the molds back to Lee and they sent it back and said it was in spec (wonder what their specifications are?).

    I got so disgusted that I designed a bullet based on Accurate Molds 31-225B and the 31-215E with no lube grove since I use Hi-Tec coating. The new bullet # is 31-236S.
    I ordered a 3 cavity mold of it today. I have one other mold from Accurate in 9mm and it is the best I have ever used.

    The only trouble with the new mold is I've now got to wait 3 weeks to get it!

  2. #2
    Boolit Master
    Join Date
    Dec 2014
    Location
    SE Michigan
    Posts
    577
    I've heard people have gotten good results with the NOE 311-247-FN mold. I picked up the hollowpoint version, but haven't had a chance to cast with it.

    Either way, hopefully your new mold will yield far better results than the Lee mold!

  3. #3
    Boolit Master
    runfiverun's Avatar
    Join Date
    Dec 2007
    Location
    soda springs Id.
    Posts
    27,856
    if you got an 8 twist barrel you ain't missing nuthin with the lee mold.
    I have it and shoot it in a 7 twist and it's okay at low speeds to about 50 yds.
    mine barely scuffs the bottom band [below the tumble grooves] a .310 sizer.
    I can't use thicker milsurp brass in my rifle with a 310 diameter bullet anyway, I have to buy commercial cases.
    it's all an educated guess,,,, till the trigger is pulled.

    this opinion brought to you by mister low-tech solution..

  4. #4
    Boolit Mold
    Join Date
    Mar 2014
    Location
    Central Arkansas
    Posts
    11

    Quick

    3 days from ordering the mold from Accurate Molds until I have it in my hands!

    Thought is was going to take 3 weeks.

  5. #5
    Boolit Master waco's Avatar
    Join Date
    Jan 2009
    Location
    Springfield, Oregon
    Posts
    2,474
    Tom is fast.....
    The fear of the Lord is the beginning of knowledge: but fools despise wisdom and instruction.
    Proverbs 1:7

  6. #6
    Boolit Master

    Moonie's Avatar
    Join Date
    Apr 2010
    Location
    High Point North Carolina
    Posts
    4,191
    That is a great looking pc boolit and I'll bet that mold rains those slick sided things.

  7. #7
    Boolit Mold
    Join Date
    Mar 2014
    Location
    Central Arkansas
    Posts
    11
    They came out so nice and easy I'm almost ashamed. My problem now is that Ive cast a little over 1100 of them, and put 2 coats of gold Hi-Tec epoxy on them, I don't know what to do with them. I sold the 300 blackout pistol I just built and don't feel like messing with another.
    I hate to melt them down, but 28.4# of lead will cast a lot of 9mm and .45 ACP. Just hate to melt down such pretty bullets.

  8. #8
    Boolit Man
    Join Date
    Oct 2016
    Location
    Springdale,AR
    Posts
    75
    im pretty sure I just found your listing for the mold on ebay. I just got into 300blk and im sorely disappointed in the lee mold that I got. i may have to just pick that mold up from you and see how those boolits shoot out of a 16in. if you ever head to the 1000yd range in lincon ill let you shoot the rifle i just built up.

  9. #9
    Boolit Master

    rockrat's Avatar
    Join Date
    Aug 2005
    Posts
    3,434
    I am sure that someone might trade you for your boolits, some lead alloy or $$

  10. #10
    Boolit Master
    Join Date
    Feb 2007
    Location
    missouri
    Posts
    534
    The Lee boolit does drop small, Lee is FOS calling it anything else, I have two both drop small, all my other Lee molds spot on. To use them powder coat them. They still are not perfect since the front driving band is way undersized and even after PC'ing it does not always bring it up to size compared to the rear of the boolit, so really the enitre mold is screwed up.

  11. #11
    Boolit Master
    Join Date
    Jul 2016
    Posts
    1,119
    lsippell You can throw a coat or two of PC on the Lee boolit to get it up to where you want it.

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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