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Rifles, Reloading, Optics, Equipment
Reloading
Humidity and load developement
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<blockquote data-quote="Jud96" data-source="post: 2336580" data-attributes="member: 69478"><p>Humidity definitely affects velocity. I never thought about it because I left my powder in the original containers and in a house with AC that stayed relatively the same temperature and humidity year long. Fast forward, I moved to Michigan last Fall. I noticed after several months something odd was happening. All of my velocities dropped 20-30fps in multiple rifles with the same load, same components, same lot, broke in barrels etc etc. The only change was moving to Michigan, which has higher humidity than West Virginia, and the fact my home in Michigan currently doesn't have central AC. I kept all of my powder in a spare closet and the room wasn't temperature or humidity controlled. I didn't even think about it since the powder was in the original containers and never gets left outside of the jugs. I'm going to experiment with some cigar humidor packs in the powder kegs and see if keeping the powder at one stable humidity level keeps things more controlled and consistent. I have a dehumidifier in my basement by my reloading bench and may store the powder there because the humidity is controlled and my basement is leak free.</p></blockquote><p></p>
[QUOTE="Jud96, post: 2336580, member: 69478"] Humidity definitely affects velocity. I never thought about it because I left my powder in the original containers and in a house with AC that stayed relatively the same temperature and humidity year long. Fast forward, I moved to Michigan last Fall. I noticed after several months something odd was happening. All of my velocities dropped 20-30fps in multiple rifles with the same load, same components, same lot, broke in barrels etc etc. The only change was moving to Michigan, which has higher humidity than West Virginia, and the fact my home in Michigan currently doesn’t have central AC. I kept all of my powder in a spare closet and the room wasn’t temperature or humidity controlled. I didn’t even think about it since the powder was in the original containers and never gets left outside of the jugs. I’m going to experiment with some cigar humidor packs in the powder kegs and see if keeping the powder at one stable humidity level keeps things more controlled and consistent. I have a dehumidifier in my basement by my reloading bench and may store the powder there because the humidity is controlled and my basement is leak free. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Humidity and load developement
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