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Stubby--Lapua
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<blockquote data-quote="davewilson" data-source="post: 158599" data-attributes="member: 4491"><p>we all understand why a faster burn rate of powder is needed.to keep the pressure curve the same.my opinion of the faster powder is it probably HURTS the speed a little.with the pressure curve the same,and the bullet exiting a same length barrel a little faster, the barrel time will have to be a little less.so the quicker powder will be pushing on the bullet the same amount, but for a shorter time. is this how you're explaining the bullet to go faster?</p><p></p><p>again, MOST of the gains in speed are due to extra surface area being pushed on. not less friction or faster burning powders.</p></blockquote><p></p>
[QUOTE="davewilson, post: 158599, member: 4491"] we all understand why a faster burn rate of powder is needed.to keep the pressure curve the same.my opinion of the faster powder is it probably HURTS the speed a little.with the pressure curve the same,and the bullet exiting a same length barrel a little faster, the barrel time will have to be a little less.so the quicker powder will be pushing on the bullet the same amount, but for a shorter time. is this how you're explaining the bullet to go faster? again, MOST of the gains in speed are due to extra surface area being pushed on. not less friction or faster burning powders. [/QUOTE]
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