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Rifles, Reloading, Optics, Equipment
Reloading
Bullet stability
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<blockquote data-quote="Mikecr" data-source="post: 2825027" data-attributes="member: 1521"><p>What do you mean [exactly] by 'marginally stable' for that scenario?</p><p></p><p>Consider a hypothetical muzzle velocity affect to a Sierra 111 DTAC, ICAO air density, 9:1 twist:</p><p>3,000fps Sg = 1.16</p><p>3,500fps Sg = 1.19</p><p>4,000fps Sg = 1.21</p><p>10,000fps Sg = 1.34</p><p>17,513fps Sg = 1.50 fully stable</p><p></p><p>All of these Sg's under 1.5 are considered 'marginal'.</p></blockquote><p></p>
[QUOTE="Mikecr, post: 2825027, member: 1521"] What do you mean [exactly] by 'marginally stable' for that scenario? Consider a hypothetical muzzle velocity affect to a Sierra 111 DTAC, ICAO air density, 9:1 twist: 3,000fps Sg = 1.16 3,500fps Sg = 1.19 4,000fps Sg = 1.21 10,000fps Sg = 1.34 17,513fps Sg = 1.50 fully stable All of these Sg's under 1.5 are considered 'marginal'. [/QUOTE]
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