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Long Range Hunting & Shooting
Technical question
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<blockquote data-quote="Jay Kyle" data-source="post: 8620" data-attributes="member: 347"><p>ah.. brain fart. I cannot assume the shorter barrel will provide a higher pressure due to the parameters. It's really dependent on the powder type and amount used.</p><p></p><p>A fast burning powder will produce a peak pressure closer to the beginning of the barrel, then the pressure curve drops off rapidly (pressure vs bullet distance travelled down the barrel).</p><p></p><p>A slower powder will reach peak pressure further out and drops off gradually. Hence given the same barrel length the slower powder will produce a higher exit presure - this is where I tripped on that last comment. </p><p></p><p>AB</p></blockquote><p></p>
[QUOTE="Jay Kyle, post: 8620, member: 347"] ah.. brain fart. I cannot assume the shorter barrel will provide a higher pressure due to the parameters. It's really dependent on the powder type and amount used. A fast burning powder will produce a peak pressure closer to the beginning of the barrel, then the pressure curve drops off rapidly (pressure vs bullet distance travelled down the barrel). A slower powder will reach peak pressure further out and drops off gradually. Hence given the same barrel length the slower powder will produce a higher exit presure - this is where I tripped on that last comment. AB [/QUOTE]
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