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

bbromgard · #1 03-14-2009, 11:12 PM

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

ol mike · #2 03-14-2009, 11:55 PM

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

Michael Eichele · #3 03-15-2009, 01:07 AM

depending on other variables, about 1 inch.

bbromgard · #4 03-15-2009, 01:41 AM

Thanks for the info. BB

bbromgard · #5 03-15-2009, 05:55 PM

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