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Long Range Hunting & Shooting
Left @ 300 yds - Right @ 1000 yds? WTH?
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<blockquote data-quote="jwp475" data-source="post: 241605" data-attributes="member: 3776"><p><strong>Re: Article on Spin Drift</strong></p><p></p><p></p><p></p><p> I shot 180 grain TSX & AccuBonds out of my 300 WIn and 300 SMKs out of my 338 Lapua. I do not adjust for spin drift and I have no (zero) problms hitting my targets at 1000 yards. My steel target that I shot at 1k are not more that 12", so if I adjusted for 8 to 9 inches of drift then I would completely miss my target.</p><p></p><p> I had a conversation about this with Gerald Perry the maker of the ExBall ballistics targeting software and he stated that all bullet do not exhibit enough spin drift to be concerned about. His suggestion is to shoot an a calm morning with no wind and to measure from the center of your group back to your aim point and that is your spin drift and it can be entered into the ExBall program and then the program will compensate for spin drift. He did say that long high BC VLD bullets were famous for spin drift</p></blockquote><p></p>
[QUOTE="jwp475, post: 241605, member: 3776"] [b]Re: Article on Spin Drift[/b] I shot 180 grain TSX & AccuBonds out of my 300 WIn and 300 SMKs out of my 338 Lapua. I do not adjust for spin drift and I have no (zero) problms hitting my targets at 1000 yards. My steel target that I shot at 1k are not more that 12", so if I adjusted for 8 to 9 inches of drift then I would completely miss my target. I had a conversation about this with Gerald Perry the maker of the ExBall ballistics targeting software and he stated that all bullet do not exhibit enough spin drift to be concerned about. His suggestion is to shoot an a calm morning with no wind and to measure from the center of your group back to your aim point and that is your spin drift and it can be entered into the ExBall program and then the program will compensate for spin drift. He did say that long high BC VLD bullets were famous for spin drift [/QUOTE]
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Left @ 300 yds - Right @ 1000 yds? WTH?
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