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  • As it turns out, a 1/2" deep well socket is the perfect size for holding .308 and 6.5CM brass for annealing.
    Make an adaptor and chuck it up in a drill on low speed. The color goes from "brass" to "copper" to "gray". As soon as it turns gray, drop it in a bucket of water.
     

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    Archeryrob

    Undecided on a great many things
    Mar 7, 2013
    3,117
    Washington Co. - Fairplay
    I do the same as you, but my buddy scolded me for quenching it. He said I was re-hardening the brass with the quench and to let it air cool to stay soft. Kind of make sense, but that is what is does to steel.
     

    smdub

    Ultimate Member
    MDS Supporter
    Nov 14, 2012
    4,665
    MoCo
    Brass will not harden with quench like steel. The only way to harden brass is work hardening. Two totally different metallurgies.
     

    pitpawten

    Ultimate Member
    Jan 28, 2013
    1,611
    Brass will not harden with quench like steel. The only way to harden brass is work hardening. Two totally different metallurgies.
    So quenching is only to allow you to handle it and has no metallurgical effect?
     

    pitpawten

    Ultimate Member
    Jan 28, 2013
    1,611
    With brass this is correct.
    I quench to stop the heat transfer from travelling further down the case.
    Well I guess that means it does have some metallurgical effect, just just not in relation to the neck : )

    I'm green with regards to non-ferrous stuff so good info in this thread
     

    Blacksmith101

    Grumpy Old Man
    Jun 22, 2012
    22,301
    With brass this is correct.
    I quench to stop the heat transfer from travelling further down the case.
    Works this way with Brass, Copper, Silver, and Gold.

    Some Lead Alloys can be water hardened.

    Different metals have widely differing metallurgic characteristics, even different alloys of the same metal can exhibit different results. Steel with a low carbon content is much different from steel with a high carbon content and they need to be processed differently.

    The definitive reference for metals is the ASM Handbook:

    Volume 4E would be applicable for cartridge cases.
     

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