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How much does a 20 mph wind affect at 100 yrds?

 
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Old 03-14-2009, 11:12 PM
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How much does a 20 mph wind affect at 100 yrds?

I am shooting a 270 rem/150 grn. N.P. about 2700 fps. If the crosswind is Gusting up to 20 MPH, how much variance over the norm, if any, should I expect on my groups at 100 yards? Thanks, BB
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Old 03-14-2009, 11:55 PM
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Re: How much does a 20 mph wind affect at 100 yrds?

Go to Big Game Info - A resource for the big game hunter and plug in your info. -it'll tell you !

It's free ballistic software online. -Mike
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Old 03-15-2009, 01:07 AM
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Re: How much does a 20 mph wind affect at 100 yrds?

depending on other variables, about 1 inch.
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Long range shooting is a process that ends with a result. Once you start to focus on the result (where the shot goes, how big the group is, what your buck will score, what your match score is, what place you are in...) then you loose the capacity to focus on the process.

Last edited by Michael Eichele; 03-15-2009 at 01:31 AM.
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Old 03-15-2009, 01:41 AM
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Re: How much does a 20 mph wind affect at 100 yrds?

Thanks for the info. BB
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Old 03-15-2009, 05:55 PM
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Re: How much does a 20 mph wind affect at 100 yrds?

I punched it in to the Ballistic calc and it said 1.6 inches. Thanks again for the help. The Ballistic calculator will come in handy in the future. BB
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