beautiful day today with about 15 mph winds. i was curious in the mild wind how a couple things would drift. took out a rem mod 7 in 17 furball, a martini cadet in 219 donaldson with 50 gr sierras, and a old 1878 sharps borchert in 22 ppic with 40 gr vmax. set up the targets at 200. the wind was switching around pretty well at anywhere from head on to about 30-45 deg. crossways in each direction. i was curious mostly about the drift on the 40vs 50 grain bullets.
results were with the 17 & 20 grainers that the vertical dispersion was only about 1.5" but the horizontal was over 4". no great surprises there the ppc wasn't affected at all by the wind and put 5 rounds into a little cluster that was only 5/8", and the 219 was not affected either, putting its rounds into about 9/10's.
wind is always difficult for everyone and this little episode did nothing to ehlp whatsoever. the only thing it did was to rather reaffirm my opinion that a mild crosswind does little to blow the bullet off course, providing that is that it is angular one.

This surprises me that no one has replied to Dwight's report on wind drift.....it's a classic test and another example what folks can learn here on the AR reports.

Excellent post sir.....my hat is off to you
Forrest

Vapo

Unless we all have the same caliber rifles as dwight this test if you want to call it that means little to me or anyone else. FS

I am sitting here overlooking a fjord in Sweden, where I can actually see the ripples of the wind as it passes over the water, as the surface is relatively calm.

The wind does not seem to go in one direction, and seems to change direction almost 30 degrees or more.

Could this fact - that the wind does not actually blow in EXACTLY the same direction gives us these results?

I have fired tracers from a 308 Winchester in the desert at night, and the bullets did not go in straight line at all.

I wonder if any of you has tried this?

The Wind Book is one of the best books on the subject of shooting in the wind.

Saeed is right, the wind never really blows in a straight line, it waivers. Because it waivers, a direct cross wind is easier to shoot in than a straight head wind or tail wind.