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Thread: Heat treating gas checked bullets

  1. #1
    Boolit Master

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    Oct 2013
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    Heat treating gas checked bullets

    I heat treated some PC'd gas check installed 260gr 44 mag bullets at 425F for one hour, water quenched and the copper checks turned a solid brass color. My convection toaster type oven does not have any identifiable hot spots (in the past I had positioned thermocouples at many locations looking for them).

    So I must assume I have fully annealed the installed gas checks. Can I expect any issues or is this just a 'whatever' thing?
    Last edited by oley55; 09-22-2022 at 05:57 PM.
    “Some people spend an entire lifetime wondering if they made a difference in the world. But, the Marines don't have that problem.” Ronald Reagan


  2. #2
    Boolit Grand Master

    Winger Ed.'s Avatar
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    You need to get Copper up around 750-800 degrees to anneal it, yours just got hot enough to tarnish.

    I wouldn't worry about it either way.
    In school: We learn lessons, and are given tests.
    In life: We are given tests, and learn lessons.


    OK People. Enough of this idle chit-chat.
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    EVERYONE!
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  3. #3
    Boolit Master
    Join Date
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    Question, why the water quench after heat treatment?

  4. #4
    Boolit Master

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    Quote Originally Posted by 30calflash View Post
    Question, why the water quench after heat treatment?
    The heat treatment and the following quench is what increases hardness. No quench equals air cooled which the boolits are already with a 11-12 BHN. My heat treatment/quench got me up to 15 BHN with pencils. They are below the chart predictions from the provided link, but fine for my purposes.
    http://www.lasc.us/HeatTreat.htm
    “Some people spend an entire lifetime wondering if they made a difference in the world. But, the Marines don't have that problem.” Ronald Reagan


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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