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Thread: 300 blackout cast data / Or can i load cast bullets using starting jacketed data?

  1. #1
    Boolit Man MAGA's Avatar
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    300 blackout cast data / Or can i load cast bullets using starting jacketed data?

    I have been searching for 300 blackout data using cast bullets, results are spotty. Most of the data I have found is for jacketed bullets.

    I am actually looking for some bolt gun data, rifle and pistol powder.

    The bullet i have is about 130gr the mold is a 311410 MP


    Can i safely substitute and load cast bullets using jacketed data starting loads? I would never approach max loads....

  2. #2
    Boolit Master waco's Avatar
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    The short answer is yes.
    The fear of the Lord is the beginning of knowledge: but fools despise wisdom and instruction.
    Proverbs 1:7

  3. #3
    Boolit Man MAGA's Avatar
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    Quote Originally Posted by waco View Post
    The short answer is yes.
    Thanks, I have done this before when loading pistol but never tried it with rifle

    So thought i'd ask lol

  4. #4
    Boolit Master Boolit_Head's Avatar
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    Check out 300blktalk.com there should be a lot of cast data over there as well.
    On every question of construction let us carry ourselves back to the time when the Constitution was adopted, recollect the spirit manifested in the debates, and instead of trying what meaning may be squeezed out of the text or invented against it, conform to the probable one in which it was passed.

    Thomas Jefferson, letter to William Johnson, June 12, 1823

  5. #5
    Boolit Master
    runfiverun's Avatar
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    for a 130gr bullet 32-20 data would be completely acceptable also.
    it's all an educated guess,,,, till the trigger is pulled.

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

  6. #6
    Boolit Man MAGA's Avatar
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    Quote Originally Posted by runfiverun View Post
    for a 130gr bullet 32-20 data would be completely acceptable also.
    Ok cool, didn't know that!

  7. #7
    Boolit Master Aunegl's Avatar
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    In my 300 blk AR pistol-10.5", I've been doing some load developments with my 30 cal. cast bullets. I've been using the 130 gr. RCBS-sp. My best load so far, 18 gr. - 1680, LC brass, Fed. 205, 1.93" OAL. At 100 yd. - 2.5 moa with 5 shots. BHO with the last shot. This load moves to the bonus round. 200m rams.

  8. #8
    Boolit Man
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    good to hear on that load. I just got done building a 16in ar and ive been looking for a good load for supersonic cast boolits. so far all ive been casting for is heavy subsonics but ill be getting a lighter weight mold pretty soon.

  9. #9
    Boolit Buddy
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    I just tried 17gns of ADI Ar2205 under my Mihec 311410 (with the big hollow point) it was doing an average of 1870 fps from a 10.5" barrel, fed well, Lrbho, accuracy was something like 3/4" for 10 rounds at 25 yards but I was shooing for function and chrony not accuracy. The boolits were seated just past the grease groove.
    Deadly on milk jugs

    Sent from my VFD 700 using Tapatalk

  10. #10

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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