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The Range
Ammo & Reloading
How long are primers and powders good for?
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<blockquote data-quote="Shadowrider" data-source="post: 3691230" data-attributes="member: 3099"><p>Powder and primers, IF PROPERLY STORED, will easily last 100 years. I'm not even sure they have a limitation to their shelf life. It's all about the storage. Wide temp swings and high temps is what will make things go bad.</p><p></p><p>Humidity isn't the bugaboo that most think it is. One of the original lots of Hercules Bullseye was stored in deionized water for preservation. They'd dehydrate a sample of it and test it alongside the new to compare the new to the original as a QC check. I wonder if they still have some of it left? <img src="/images/smilies/headscratch.gif" class="smilie" loading="lazy" alt=":scratch:" title="Headscratch :scratch:" data-shortname=":scratch:" /> Wet primers work as new if they've been wet as long as they are allowed to dry completely.</p></blockquote><p></p>
[QUOTE="Shadowrider, post: 3691230, member: 3099"] Powder and primers, IF PROPERLY STORED, will easily last 100 years. I'm not even sure they have a limitation to their shelf life. It's all about the storage. Wide temp swings and high temps is what will make things go bad. Humidity isn't the bugaboo that most think it is. One of the original lots of Hercules Bullseye was stored in deionized water for preservation. They'd dehydrate a sample of it and test it alongside the new to compare the new to the original as a QC check. I wonder if they still have some of it left? :scratch: Wet primers work as new if they've been wet as long as they are allowed to dry completely. [/QUOTE]
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