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Long Range Hunting & Shooting
Scope adjustment for spin and wind Help
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<blockquote data-quote="Stgraves260" data-source="post: 1698404" data-attributes="member: 19988"><p>Spin drift always gets confusing. The truth is there is no real way to justify for it. What I mean is you would have to set up a 1000 yard indoor range to eliminate spin drift effect. All I can tell you is that when I shoot out 1000 yards I add 1 more MOA of windage when favoring for twist rate. The thang is, is that compasating for twist rate or wind? We will never know cause there is no 1000 + yard indoor range. It would be really nice if some day there would be a 2000 yard indoor range. It would cost a ton of money to do. Could you imagine how tall the roof would be. Holly cow!!. But this would be the only way to see if twist rate even really bothers our long range shooting. My best suggestion is to sight your rifle in at 100 yards. That way you can do all your math out in the field much more easy. 100 yards is a very short range and will eliminate a lot of verbally such as wind and twist rate. If you sight your rifle in at 200 yards lets say with a 10 MPH wind it will move your bullet off center. " You do not have a true zero " You may get 3 bullets in the bull but everything was adjusted and calculated with that 10 MPH wind. So when you check your zero on a different day you find that its off and you don't know how it happened cause you take such good care of your firearm. Hope this shines some lite.</p></blockquote><p></p>
[QUOTE="Stgraves260, post: 1698404, member: 19988"] Spin drift always gets confusing. The truth is there is no real way to justify for it. What I mean is you would have to set up a 1000 yard indoor range to eliminate spin drift effect. All I can tell you is that when I shoot out 1000 yards I add 1 more MOA of windage when favoring for twist rate. The thang is, is that compasating for twist rate or wind? We will never know cause there is no 1000 + yard indoor range. It would be really nice if some day there would be a 2000 yard indoor range. It would cost a ton of money to do. Could you imagine how tall the roof would be. Holly cow!!. But this would be the only way to see if twist rate even really bothers our long range shooting. My best suggestion is to sight your rifle in at 100 yards. That way you can do all your math out in the field much more easy. 100 yards is a very short range and will eliminate a lot of verbally such as wind and twist rate. If you sight your rifle in at 200 yards lets say with a 10 MPH wind it will move your bullet off center. " You do not have a true zero " You may get 3 bullets in the bull but everything was adjusted and calculated with that 10 MPH wind. So when you check your zero on a different day you find that its off and you don't know how it happened cause you take such good care of your firearm. Hope this shines some lite. [/QUOTE]
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Scope adjustment for spin and wind Help
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