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Hunting
Long Range Hunting & Shooting
Barrel length and twist question
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<blockquote data-quote="FEENIX" data-source="post: 1619702" data-attributes="member: 14204"><p>Sorry but your 180g round nose, Spitzer, VLD analogy does not make sense. The reason they require different twist for stabilization is because by design they have different lengths and BCs, two essential element of the bullet parameter necessary input to the twist rate calculator. The other two is weight and caliber/bullet diameter. As previously noted, any changes in bullet parameters (BC, caliber/bullet diameter, weight, and length) will have a correlational effect to twist rate/SG relationship.</p></blockquote><p></p>
[QUOTE="FEENIX, post: 1619702, member: 14204"] Sorry but your 180g round nose, Spitzer, VLD analogy does not make sense. The reason they require different twist for stabilization is because by design they have different lengths and BCs, two essential element of the bullet parameter necessary input to the twist rate calculator. The other two is weight and caliber/bullet diameter. As previously noted, any changes in bullet parameters (BC, caliber/bullet diameter, weight, and length) will have a correlational effect to twist rate/SG relationship. [/QUOTE]
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