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Hunting
Long Range Hunting & Shooting
Wind holds and second focal plane
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<blockquote data-quote="Bravo 4" data-source="post: 2318991" data-attributes="member: 8873"><p>Zero offset for spin drift is as simple as punching in the right numbers in a ballistic app and turning off anything that can skew the numbers (wind and coriolis). Then determine what offset is acceptable, it will be a bit off either close or far. If you generalize it for all rifles/loads it may throw you off a bit more than needed. Time of flight and RPMs determine drift.</p></blockquote><p></p>
[QUOTE="Bravo 4, post: 2318991, member: 8873"] Zero offset for spin drift is as simple as punching in the right numbers in a ballistic app and turning off anything that can skew the numbers (wind and coriolis). Then determine what offset is acceptable, it will be a bit off either close or far. If you generalize it for all rifles/loads it may throw you off a bit more than needed. Time of flight and RPMs determine drift. [/QUOTE]
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Hunting
Long Range Hunting & Shooting
Wind holds and second focal plane
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