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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Hunting with a possible marginal stability bullet
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<blockquote data-quote="Mikecr" data-source="post: 1744978" data-attributes="member: 1521"><p>A bullet released as marginally stable only needs to make it past ~10yds without tumbling, for it to reach fully stable beyond.</p><p>This, because forward velocity slows way more than radial velocity, so displacement per turn is ever decreasing. Gyroscopic stability goes upward downrange.</p><p></p><p>The issues with marginal stability are potential increasing of drag early on release (lowering relative BC), and varying aerodynamic jump (hurting accuracy), and risking instability if air density were to increase (less margin).</p></blockquote><p></p>
[QUOTE="Mikecr, post: 1744978, member: 1521"] A bullet released as marginally stable only needs to make it past ~10yds without tumbling, for it to reach fully stable beyond. This, because forward velocity slows way more than radial velocity, so displacement per turn is ever decreasing. Gyroscopic stability goes upward downrange. The issues with marginal stability are potential increasing of drag early on release (lowering relative BC), and varying aerodynamic jump (hurting accuracy), and risking instability if air density were to increase (less margin). [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Hunting with a possible marginal stability bullet
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