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

Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by bbromgard, Mar 14, 2009.

  1. bbromgard

    bbromgard Member

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    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
     
  2. ol mike

    ol mike Well-Known Member

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  3. Michael Eichele

    Michael Eichele Well-Known Member

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    depending on other variables, about 1 inch.
     
    Last edited: Mar 15, 2009
  4. bbromgard

    bbromgard Member

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    Thanks for the info. BB
     
  5. bbromgard

    bbromgard Member

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    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