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Old January 22, 2013, 08:50 AM   #21
Magnum Wheel Man
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Join Date: July 26, 2006
Location: Southern Minnesota
Posts: 9,333
I just loaded a 1000 small pistol Cascade primers ( CCI before they became CCI... what's that??? 1960's ??? ) last summer, they'd been sitting on a shelf in a basement the whole time... house is air conditioned, but it's an old farm house that sometimes gets water on the floor... not one failure to fire from the entire box...

AFAIK, powders varry a little in life, but most / all turn that rusty color & smell "off" if bad... I have an extensive powder library I inherited from my FIL... some are at least as old as the Cascade primers listed above, I've never had to throw out a powder yet... he stored all his powders in an old refridgerator ( non running ) in that same wet basement
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