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Hunting
The Basics, Starting Out
spin drift
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<blockquote data-quote="chad44" data-source="post: 656619" data-attributes="member: 30338"><p>How many of you account for spin drift? I was shooting to validate my trajectory on the G7 ballistic program and had not been accounting for it but noticed it gets pretty significant past 700 yards. Do I add that value on top of my wind? I have it in a separate column. wind call for 10 mph 3 oclock is -4.2R moa and spin drift is -5.7R moa. so would I dial in 9.9 left?? that just seems huge to me but that is what I get.</p><p>I'm shooting 7mm rem mag at 2949 fps with 168 gr berger hunting vld with a 1:9.5 right hand twist.</p><p>thanks</p></blockquote><p></p>
[QUOTE="chad44, post: 656619, member: 30338"] How many of you account for spin drift? I was shooting to validate my trajectory on the G7 ballistic program and had not been accounting for it but noticed it gets pretty significant past 700 yards. Do I add that value on top of my wind? I have it in a separate column. wind call for 10 mph 3 oclock is -4.2R moa and spin drift is -5.7R moa. so would I dial in 9.9 left?? that just seems huge to me but that is what I get. I'm shooting 7mm rem mag at 2949 fps with 168 gr berger hunting vld with a 1:9.5 right hand twist. thanks [/QUOTE]
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The Basics, Starting Out
spin drift
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