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Hunting
Long Range Hunting & Shooting
Optimal/ ideal stability factor?
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<blockquote data-quote="RockyMtnMT" data-source="post: 1549724" data-attributes="member: 7999"><p>Yes. It is a formula of bullet length, weight and barrel twist. With vel being a minor factor. Temp and air density are heavily factored as well. For ballistic stability. Terminal performance comes down rpm's more than anything but still all the other things factor in as well as how the bullets act offer impact. Coming up with a formula for terminal stability is above my pay grade but from our testing I am very comfortable with 1.5sg calculated at sea level and standard atmosphere. Guys in AK that are hunting at sea level and cold temperatures should error towards 2.0 sg.</p></blockquote><p></p>
[QUOTE="RockyMtnMT, post: 1549724, member: 7999"] Yes. It is a formula of bullet length, weight and barrel twist. With vel being a minor factor. Temp and air density are heavily factored as well. For ballistic stability. Terminal performance comes down rpm's more than anything but still all the other things factor in as well as how the bullets act offer impact. Coming up with a formula for terminal stability is above my pay grade but from our testing I am very comfortable with 1.5sg calculated at sea level and standard atmosphere. Guys in AK that are hunting at sea level and cold temperatures should error towards 2.0 sg. [/QUOTE]
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Optimal/ ideal stability factor?
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