I'm trying to find some more information on the "mph gun" wind technique. From what I understand you get the G1 BC of the bullet and multiply it by 10, and that is the Mph you base your chart on. I.e 175 SMK G1 BC = .474 x 10 = 4.7mph gun or 4.5mph gun for a easier number. Then if I'm correct the chart would as follows:

@ 4.5 mph

100yds = 0.1 mil

200yds = 0.2 mil

300yds = 0.3 mil

400yds = 0.4 mil

500yds = 0.5 mil

600yds = 0.7 mil

700yds = 0.8 mil

800yds = 0.9 mil

900yds = 1.0 mil

1000yds = 1.1 mil

Then if you have a 9 mph full value wind @ 500yds you double your value i.e 0.5 mil @ 4.5mph x 2 = 1.0 mil @ 9mph. Seems straight forward so far?

My question is if there's any flaws with what I understand so far? What about past 1000yds, are there any other jumps like there is at 700yds? Anything else that I'm missing? And lastly if station pressure or different muzzle velocity ranges have a effect of this, if so what are the fps standards for what mph range, and how do we account for these exceptions? Thanks guys