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Rifles, Reloading, Optics, Equipment
Reloading
Barrel Burn Chart
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<blockquote data-quote="woods" data-source="post: 951530" data-attributes="member: 6042"><p>The chart is useful as long as you adhere to the caveats in the title</p><p></p><p>In particular</p><p></p><p>"maximum velocity with middleweight conventional bullets at or about 60,000 PSI with conventional chambering"</p><p></p><p>"so long as cartridge is loaded to full ballistic potential"</p><p></p><p>IOW calibers work best with certain burn rate powders loaded to an approx. density</p><p></p><p>Example - 264 win mags will get "full ballistic potential" with a very slow powder that fills the case like H1000 to H870. If you chose to use a powder in the 4350 group then you would not get full ballistic potential or maximum velocity.</p><p></p><p>Also, like Mike says, there are other factors which need to be realized as having an influence also, such as heating up the barrel too much, overloading, underloading, cleaning practices etc. etc.</p><p></p><p>So IMO to use the chart as a guideline you need to assume that normal practices will be used</p></blockquote><p></p>
[QUOTE="woods, post: 951530, member: 6042"] The chart is useful as long as you adhere to the caveats in the title In particular "maximum velocity with middleweight conventional bullets at or about 60,000 PSI with conventional chambering" "so long as cartridge is loaded to full ballistic potential" IOW calibers work best with certain burn rate powders loaded to an approx. density Example - 264 win mags will get "full ballistic potential" with a very slow powder that fills the case like H1000 to H870. If you chose to use a powder in the 4350 group then you would not get full ballistic potential or maximum velocity. Also, like Mike says, there are other factors which need to be realized as having an influence also, such as heating up the barrel too much, overloading, underloading, cleaning practices etc. etc. So IMO to use the chart as a guideline you need to assume that normal practices will be used [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Barrel Burn Chart
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