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Spin Drift
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<blockquote data-quote="mpk1996" data-source="post: 1410574" data-attributes="member: 27656"><p>most ballistics apps will calc spin drift. and if you have your parameters set right (R or L twist) it will calc correctly. basically its like how a golf ball curves through the air. For most shooting you will see .1 mil around 500-800 and around .2 mil from 900-1100 of spin drift to the right in a right twist barrel (which most are). a good way to see this is put in 0 wind in your ballistics app and you will see at distance that you will need to add "windage" this is spin drift</p></blockquote><p></p>
[QUOTE="mpk1996, post: 1410574, member: 27656"] most ballistics apps will calc spin drift. and if you have your parameters set right (R or L twist) it will calc correctly. basically its like how a golf ball curves through the air. For most shooting you will see .1 mil around 500-800 and around .2 mil from 900-1100 of spin drift to the right in a right twist barrel (which most are). a good way to see this is put in 0 wind in your ballistics app and you will see at distance that you will need to add "windage" this is spin drift [/QUOTE]
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