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Rifles, Reloading, Optics, Equipment
Reloading
6.5 PRC velocity loss.
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<blockquote data-quote="MagnumManiac" data-source="post: 2296331" data-attributes="member: 10755"><p>Then if water is taken up by the powder, why do IMR keep a jar of IMR 4198 in WATER and take some out, dry it and then test it against new batches in calorimeter bomb tests?</p><p>This would render the powder useless.</p><p>The moisture content that is written about in smokeless powders is not WATER content, it is solvent content which is displaced over time as it dries out.</p><p>I worked in the plant that makes Hodgdon powder and spoke at length with the guys doing the formula. They said that smokeless single base powder has LESS THAN 1% WATER IN IT OVER THE ENTIRE BATCH MADE. Double base powders are even less than .5%. If this is tonnes of powder, then how much water is in it?</p><p></p><p>Cheers.</p></blockquote><p></p>
[QUOTE="MagnumManiac, post: 2296331, member: 10755"] Then if water is taken up by the powder, why do IMR keep a jar of IMR 4198 in WATER and take some out, dry it and then test it against new batches in calorimeter bomb tests? This would render the powder useless. The moisture content that is written about in smokeless powders is not WATER content, it is solvent content which is displaced over time as it dries out. I worked in the plant that makes Hodgdon powder and spoke at length with the guys doing the formula. They said that smokeless single base powder has LESS THAN 1% WATER IN IT OVER THE ENTIRE BATCH MADE. Double base powders are even less than .5%. If this is tonnes of powder, then how much water is in it? Cheers. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
6.5 PRC velocity loss.
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