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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Bullet stabilization, strictly RPM?
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<blockquote data-quote="X-man" data-source="post: 170610" data-attributes="member: 8416"><p>After reading this stuff suffice to say that <strong>sg</strong> is a calculated number ballistic scientists use to explain gyroscopic projectile stability.</p><p></p><p>In general terms a value of 1 is "bad" 1.3 should work and 1.5 is considered "good".</p><p>Here is a link to the formula used (<a href="http://www.nennstiel-ruprecht.de/bullfly/gyrocond.htm" target="_blank">http://www.nennstiel-ruprecht.de/bullfly/gyrocond.htm</a>). Trying to sort out the equation somewhat sucks you in to a bit of a rabbit hole.....It is much more complicated and deep than it at first appears.</p><p></p><p>The JBM link Mikecr provided tells most of us all need to know.</p><p></p><p>One item of interest is that a bullet will not stabilize in outer space. Weird stuff and way out of my depth!</p><p></p><p>Thanks for the mind warp!</p></blockquote><p></p>
[QUOTE="X-man, post: 170610, member: 8416"] After reading this stuff suffice to say that [B]sg[/B] is a calculated number ballistic scientists use to explain gyroscopic projectile stability. In general terms a value of 1 is "bad" 1.3 should work and 1.5 is considered "good". Here is a link to the formula used ([url]http://www.nennstiel-ruprecht.de/bullfly/gyrocond.htm[/url]). Trying to sort out the equation somewhat sucks you in to a bit of a rabbit hole.....It is much more complicated and deep than it at first appears. The JBM link Mikecr provided tells most of us all need to know. One item of interest is that a bullet will not stabilize in outer space. Weird stuff and way out of my depth! Thanks for the mind warp! [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Bullet stabilization, strictly RPM?
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