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Rifles, Reloading, Optics, Equipment
Reloading
Temp sensitive?
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<blockquote data-quote="jrock" data-source="post: 1896310" data-attributes="member: 78569"><p>I generally load within 50 fps of max pressure sign. Thus, if a powder isn't stable enough, it will show up in either warm or cold weather (Retumbo for example). </p><p>To track and predict the effects of powder sensitivity, I keep track of all my shooting data and specifically run test at 90 deg + and less than 32 deg. I plot this data on a chart and us a linear function to predict expected velocities at different temps. Getting two points of data at least 20 degrees apart gives enough information to predict the high and low temp velocities. I tested and verified this last winter and was within 10 fps of expected velocity on the first try.</p></blockquote><p></p>
[QUOTE="jrock, post: 1896310, member: 78569"] I generally load within 50 fps of max pressure sign. Thus, if a powder isn't stable enough, it will show up in either warm or cold weather (Retumbo for example). To track and predict the effects of powder sensitivity, I keep track of all my shooting data and specifically run test at 90 deg + and less than 32 deg. I plot this data on a chart and us a linear function to predict expected velocities at different temps. Getting two points of data at least 20 degrees apart gives enough information to predict the high and low temp velocities. I tested and verified this last winter and was within 10 fps of expected velocity on the first try. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Temp sensitive?
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