Cold weather effects on powder/primers?

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  • Enon

    Plinker
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    Sep 3, 2016
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    Howard County
    I reload in an unheated detached garage. My wife parks in this garage. Should I be concerned with temperature and winter moisture? Thanks in advance.
     

    1775usmarine

    Sleeper
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    Feb 15, 2013
    11,264
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    IN
    I reload in an unheated detached garage. My wife parks in this garage. Should I be concerned with temperature and winter moisture? Thanks in advance.

    Same situation but I park in the garage. I haven't noticed any issues with my reloads. I put the powder back in the original containers when done for the "season" and make sure they are closed tight.
     

    Hawkeye7br

    Expert
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    Jul 9, 2015
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    Terre Haute
    Probably better to have them in the toolbox rather than bring them back into the house. The condensation (cold garage to warm house) would be trapped inside the container with the primers.
     

    Bennettjh

    Grandmaster
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    Jul 8, 2012
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    Columbus
    I would think moisture would be a problem before temperature. Wouldn't hurt to put some desiccant in your toolbox. :twocents:
     

    BehindBlueI's

    Grandmaster
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    Oct 3, 2012
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    It's fine. Worries about condensation are baseless. The primer compound can get wet and be dried back out and be the exact same. The compound is designed to get wet and dry out fine, because that's how it's handled in the factory during assembly of the primer. Loading primer cups with dry compound would be rather dangerous.

    Powder, also fine.
     

    Sniper 79

    Master
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    Oct 7, 2012
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    Same deal at my old house. I stored dies, powder, and primers in the house. Warmed up the garage for a loading session. Only bring out what I'm going to load. Once ammo was loaded it goes back into the house. Also spray down press to prevent rust.

    So glad those days are over.
     
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