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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Caution in the cold
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<blockquote data-quote="tankgijohn72" data-source="post: 1566709" data-attributes="member: 77441"><p>Yes, pressure should go down based of the coefficient of thermal expansion. However, what the OP is seeing could be a change in burn rate due to something happening to the powder. Or the copper becoming harder and engraving forces increase. Otherwise, nothing would really explain the gross increase in pressure.</p></blockquote><p></p>
[QUOTE="tankgijohn72, post: 1566709, member: 77441"] Yes, pressure should go down based of the coefficient of thermal expansion. However, what the OP is seeing could be a change in burn rate due to something happening to the powder. Or the copper becoming harder and engraving forces increase. Otherwise, nothing would really explain the gross increase in pressure. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Caution in the cold
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