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Rifles, Reloading, Optics, Equipment
Reloading
temperature sensitive
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<blockquote data-quote="Mikecr" data-source="post: 823908" data-attributes="member: 1521"><p>A test: <a href="http://www.shootingsoftware.com/ftp/Pressure%20Factors.pdf" target="_blank">http://www.shootingsoftware.com/ftp/Pressure Factors.pdf</a></p><p>From it:</p><p>----------------------------------------------------------------------------</p><p>Both barrel temperature and powder temperature are</p><p>important variables, and they are not the same variable. If you fail to take barrel</p><p>temperature into account while doing pressure testing, your test results will be very</p><p>significantly affected.</p><p>----------------------------------------------------------------------------</p><p>If you're not controlling barrel temperature, you about as well might not bother</p><p>controlling powder temperature, either. In the cases investigated, barrel temperature is a</p><p>much stronger variable than powder temperature.</p><p>----------------------------------------------------------------------------</p><p>The pressures generated by IMR4350 and H4350 are, for all practical purposes, equally affected</p><p>by powder temperature in this case. Yet Hodgdon advertises that their "Extreme Powders" are not</p><p>affected by temperature.</p><p>----------------------------------------------------------------------------</p></blockquote><p></p>
[QUOTE="Mikecr, post: 823908, member: 1521"] A test: [url]http://www.shootingsoftware.com/ftp/Pressure%20Factors.pdf[/url] From it: ---------------------------------------------------------------------------- Both barrel temperature and powder temperature are important variables, and they are not the same variable. If you fail to take barrel temperature into account while doing pressure testing, your test results will be very significantly affected. ---------------------------------------------------------------------------- If you’re not controlling barrel temperature, you about as well might not bother controlling powder temperature, either. In the cases investigated, barrel temperature is a much stronger variable than powder temperature. ---------------------------------------------------------------------------- The pressures generated by IMR4350 and H4350 are, for all practical purposes, equally affected by powder temperature in this case. Yet Hodgdon advertises that their “Extreme Powders” are not affected by temperature. ---------------------------------------------------------------------------- [/QUOTE]
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Reloading
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