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Rifles, Reloading, Optics, Equipment
Reloading
Favorite 243 powders: 2018 edition
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<blockquote data-quote="tim_w" data-source="post: 1458877" data-attributes="member: 11132"><p>I certainly do not measure it. I think its flame temp but they list them in the detailed powder specs. It maybe "heat energy or temperature" I know its in QL. Its why double based or high energy powders tend to eat throats quickly relative to there burn rate compared to many single base powders. Its fairly common knowledge that H1000, N160 N165 have cooler burn temps.</p><p></p><p>Here is a link to except of research article in Industrial Engineering Chemistry Reference Book titled : "<span style="font-size: 15px"><strong>Burning Characteristics of Smokeless Powder I—Burning Temperature</strong>" <a href="https://pubs.acs.org/doi/abs/10.1021/ie50257a006" target="_blank">https://pubs.acs.org/doi/abs/10.1021/ie50257a006</a> It was authored by Hercules Powder Research and Experimental Division almost 90 yrs ago. US Mil also did extensive studies on flame temp in relation to various powders and achieved vel for given chamber and port pressures. But I can not seem to find a link to that one right now and would have to dig thru my archives fo find my copy. Likely way more info than anyone is interested in. I am nott sure if it directly mirrors to energy content but I do not think so as shape size perforations or not all can have an effect along with the various chems and treatments they use today.</span></p><p><span style="font-size: 15px"></span></p><p><span style="font-size: 15px">Then again I could be totally misinformed or full of sh!t after all its the net.</span></p></blockquote><p></p>
[QUOTE="tim_w, post: 1458877, member: 11132"] I certainly do not measure it. I think its flame temp but they list them in the detailed powder specs. It maybe "heat energy or temperature" I know its in QL. Its why double based or high energy powders tend to eat throats quickly relative to there burn rate compared to many single base powders. Its fairly common knowledge that H1000, N160 N165 have cooler burn temps. Here is a link to except of research article in Industrial Engineering Chemistry Reference Book titled : "[SIZE=4][B]Burning Characteristics of Smokeless Powder I—Burning Temperature[/B]" [URL]https://pubs.acs.org/doi/abs/10.1021/ie50257a006[/URL] It was authored by Hercules Powder Research and Experimental Division almost 90 yrs ago. US Mil also did extensive studies on flame temp in relation to various powders and achieved vel for given chamber and port pressures. But I can not seem to find a link to that one right now and would have to dig thru my archives fo find my copy. Likely way more info than anyone is interested in. I am nott sure if it directly mirrors to energy content but I do not think so as shape size perforations or not all can have an effect along with the various chems and treatments they use today. Then again I could be totally misinformed or full of sh!t after all its the net.[/SIZE] [/QUOTE]
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Favorite 243 powders: 2018 edition
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