At my range I have targets from 320 to 750 then a gap and the next at 1000, and the next at 1400 yards. Now this area has it's own microclimate, with a localized prevailant wind different to the actual prevailing wind. There is an airstip just 1500 yard in the opposite drection that confirms this. The wind tends to swing 180 though it does also swirl a lot. Usually you will get an almost frontal wind from about 11 0o'clock. It will swing to almost 9 oì'clock and at the 1400 yd gong it tends to be the opposite, like a 3 o'clock. On most days hitting the 24" gong at 1000 is no big problem, but beyond, things get tricky. Combine that with the fact that the target, a 40" piece of hardox 450 steel, does not show hits makes confirming your dope very hard. The bullets hardly take off the paint, which is wierd, considering that I am shooting a 6.5-284 140gn JLK's @ 3060fps which should still be travelling at around 1395fps. They take off a tiny dot, then leave giant faint splatter marks. there are no wind flags, though I plan to put one on each gong now, but there is plenty of vetegation and I do use a Kestrel 4500 to measure. What advice can anyone give me to be able to learn more from my observtions?