The Katyusha's missile calculations overestimate the accuracy of wind deflection.

[lebouni]

I shot to understand the deviation in the wind, wind 280 az t3, 32 shots at a distance of 375 meters, the arrivals came in a circle with a radius of 37.5 meters to a point further away at 42 meters (error of a couple of meters), according to the stated figures, everything is clear, but S2C for some reason gives me data on the wind in 2 times more than should be on the actual data 32 hits in the scatter zone. Question, how accurate is the wind correction calculator, or what did I do wrong that my data is exactly 2x different. I still have the numbers from the third test(not mine), and they look more like the shooting session I did a couple days ago.
S2C shooting calculator figures
t1 - 25
t2 - 53
t3 - 80
t4 - 104
t5 - 133

[attrib]

I got some reports in Discord, that also claimed that for Storm Cannons the wind seems to be a bit off, since latest update.

Thats the reason there is now a "custom" artillery (first choose the arty you want to be based of and then select custom, to use the current data). There you can change the "wind factor"/wind deflection manually.

If you find a better find, then current values, please provide them here, with how you tested them and how many shoots fired.

To get the best out of this, this is a group effort to determine the best values to use.

[lebouni]

I checked yesterday the green figures of shooting on katyushas and they are very close to the truth, with 3 volleys of 5-10 katyushas we get to hit important targets from the first time, so I can advise you these figures for this patch. Shot in the side wind t5, in the direction of the wind t3, and against the wind t5, sad only scatter katyusha.(These figures are relevant only for katyusha and art batteries).