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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
revolutions per minute debate
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<blockquote data-quote="Buffalobob" data-source="post: 69390" data-attributes="member: 8"><p>Big bore </p><p></p><p>You sure you don't want to move to the East and start a career in water quality computer modelling.</p><p></p><p>That some nice graphics.</p><p></p><p>The crossing of the lines on graph 2 is due to the way Sierra uses step BCs to calculate their velocities. I used their manual, number 2, because it is easier to keep a book open and read velocities than to keep switching screens.</p><p></p><p>I have made another calculation on a 308 180 gr round nose versus a 308 180 SMK both fired from a 1:8 twist and both at 3000fps. It is really different but more what one expects.</p><p></p><p>I will post it in a few minutes</p></blockquote><p></p>
[QUOTE="Buffalobob, post: 69390, member: 8"] Big bore You sure you don't want to move to the East and start a career in water quality computer modelling. That some nice graphics. The crossing of the lines on graph 2 is due to the way Sierra uses step BCs to calculate their velocities. I used their manual, number 2, because it is easier to keep a book open and read velocities than to keep switching screens. I have made another calculation on a 308 180 gr round nose versus a 308 180 SMK both fired from a 1:8 twist and both at 3000fps. It is really different but more what one expects. I will post it in a few minutes [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
revolutions per minute debate
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