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Extreme Long Range Hunting & Shooting (ELR) Over 1,000 Yds.


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Spin drift and Coriolis at 1000+

 
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  #15  
Old 10-08-2012, 08:16 PM
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Re: Spin drift and Coriolis at 1000+

Gotcha I was backwards east the POI is higher and west lower ;-)
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  #16  
Old 10-08-2012, 08:40 PM
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Re: Spin drift and Coriolis at 1000+

Here's some good reading, Gyroscopic (spin) Drift
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  #17  
Old 10-08-2012, 09:56 PM
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Re: Spin drift and Coriolis at 1000+

Quote:
Originally Posted by submoa View Post
Doesn't spin drift go up and to the right? And isn't the Coriolis affect the affect of the earth rotation on the POI? hence shooting east POI is lower and west its higher or do I have this backwards?
From the dim distant past I remember my training said that the Coriolis effect was worst if you were shooting north or south direction . If you shoot directly East or West the Earth and the target is moving in the same direction as the bullet well along the same line .
If you shoot North or South or angles in between the target moves along with the rotation of the Earth but the bullet is going sideways across that line of travel so at an extreme range it can miss the target.
In the Northern Hemisphere with a right twist barrel , spin drift and Coriolis add together. In the Southern Hemisphere one subtracts from the other in a right twist barrel.
That's why we are such great shots down here
I could be remembering wrong so I am happy to be corrected.
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  #18  
Old 10-08-2012, 10:02 PM
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Re: Spin drift and Coriolis at 1000+

LOL you funny ;-)
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  #19  
Old 10-09-2012, 01:27 AM
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Re: Spin drift and Coriolis at 1000+

I guy has to have his dreams anyway.
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  #20  
Old 10-09-2012, 01:49 AM
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Re: Spin drift and Coriolis at 1000+

LOL kept dreaming ;-)
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  #21  
Old 10-18-2012, 08:00 PM
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Re: Spin drift and Coriolis at 1000+

Applied Ballistics, as well as BulletFlight and Shooter apps are all available at the google play store. I have all three loaded on my Droid. Any one will do both spin drift and coriolis.
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