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Thread: Core dimentions?

  1. #1
    Boolit Master BlackoutBuilder's Avatar
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    Core dimentions?

    What’s the length and diameter of the BT 30 cal cores? Are the ones for copper tubing and the 5.7 the same?
    NFA = Not Freaking American

    It would be less disrespectful to burn the flag than to put a thin blue line through the middle of it.

  2. #2
    Boolit Master

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    They are a quarter by one, with a pointy end.
    I run them through a core swage die for final dimension.
    To lazy to chase arrows.
    Clodhopper

  3. #3
    Boolit Master BlackoutBuilder's Avatar
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    .25” x 1” long?

    I wanted to get a nice brass mold made for them since Ill be making them all the time. Never cared much for aluminum.
    NFA = Not Freaking American

    It would be less disrespectful to burn the flag than to put a thin blue line through the middle of it.

  4. #4
    Boolit Master

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    I can tell you the eleven cavity makes a heap of cores.

    Brass makes nice molds, but it's heavy.

    Carpal tunnel syndrome sucks.
    To lazy to chase arrows.
    Clodhopper

  5. #5
    Boolit Master BlackoutBuilder's Avatar
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    I know, I’ve been using Accurate molds for years I’ve been spoiled. Can you measure one of those cores from the 11 cavity for me?
    NFA = Not Freaking American

    It would be less disrespectful to burn the flag than to put a thin blue line through the middle of it.

  6. #6
    Boolit Master

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    Brian respectfully asks that his secrets not be given out. One quarter by one is truthful.

    I will not give you three digits to the right of the decimal.
    To lazy to chase arrows.
    Clodhopper

  7. #7
    Boolit Master BlackoutBuilder's Avatar
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    I dont think thats what he meant. I am aware of this policy, and I really have no issue with it. I would never intentionally betray him like that.
    Last edited by BlackoutBuilder; 05-23-2018 at 12:35 AM.
    NFA = Not Freaking American

    It would be less disrespectful to burn the flag than to put a thin blue line through the middle of it.

  8. #8
    Boolit Master BlackoutBuilder's Avatar
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    Im just waiting to pay off my set, and hoped to get a mold made so I could get started when I get everything delivered.
    NFA = Not Freaking American

    It would be less disrespectful to burn the flag than to put a thin blue line through the middle of it.

  9. #9
    Boolit Bub
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    Corbin’s website details it pretty well...?


    Sent from my iPhone using Tapatalk

  10. #10
    Boolit Master
    NoZombies's Avatar
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    I can't imagine Brian would consider the size core created in one of his molds to be a trade secret.
    Nozombies.com Practical Zombie Survival

    I collect all things .32. If you have something you don't need, please let me know!

  11. #11
    Boolit Master BlackoutBuilder's Avatar
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    Quote Originally Posted by NoZombies View Post
    I can't imagine Brian would consider the size core created in one of his molds to be a trade secret.
    I wouldn’t have asked, if I thought it were.
    NFA = Not Freaking American

    It would be less disrespectful to burn the flag than to put a thin blue line through the middle of it.

  12. #12
    Boolit Master
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    I make core molds with cheap Harbor Freight drill bits.
    AKA hans.pcguy

  13. #13
    Boolit Master BlackoutBuilder's Avatar
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    I dont have a drill press yet. Its on the list.
    NFA = Not Freaking American

    It would be less disrespectful to burn the flag than to put a thin blue line through the middle of it.

  14. #14
    Boolit Buddy onomrbil's Avatar
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    I forgot "dimensions" had a "t" . . . . .

  15. #15
    Boolit Master
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    I can imagine that the dimensions of a sizing die could be a trade secret. It can take an enormous amount of work to "work up" the exact dimensions like that. I doubt that there are published dimensions for ogive related specs that would consider pre-polished exact sizes and giving out those dimensions once arrived at would actually be giving away many many hours of work for free.
    AKA hans.pcguy

  16. #16
    Boolit Master BlackoutBuilder's Avatar
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    I asked BT about this, and he was fine with it. It seem like the only respectable thing to do to settle this question was for me to take it to him directly.

    I would’ve asked him myself but I didn’t want to bother the guy With such a simple question,he’s so busy.
    NFA = Not Freaking American

    It would be less disrespectful to burn the flag than to put a thin blue line through the middle of it.

  17. #17
    Boolit Master BlackoutBuilder's Avatar
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    Guess I will just have to wait until I get mine. And wait again to get the mold made. Thats ok, Im used to waiting on NFA stuff anyhow.
    NFA = Not Freaking American

    It would be less disrespectful to burn the flag than to put a thin blue line through the middle of it.

  18. #18
    I'm A Honcho!

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    I don't make cores to a specific dimension. I make them to a specific WEIGHT. I adjust my core swage die to give the desired result ( so that the core and jacket weigh the net desired weight.)


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  19. #19
    Boolit Master BlackoutBuilder's Avatar
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    Sure, I know that works, but I still have to start somewhere to get the mold made.
    NFA = Not Freaking American

    It would be less disrespectful to burn the flag than to put a thin blue line through the middle of it.

  20. #20
    Boolit Master
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    How about taking a 30 cal bullet of the style you want to end up with, measure it and subtract some for the process and go with that? It doesn't have to be exact. Lead squishes easily.
    AKA hans.pcguy

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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