Re: Is 200 yard zero, Zero?
Just looked on Amazon (Hand held weather station) and found a little hand held barometer, thermometer,compass and altimeter all for $34. Get that and learn the Beaufort scale, and I'll be my own walking weather station.
For little more more more money you can get every thing. But I guess everyone should a bit familiar with Beaufort scale. (Got to save money for ammo).
The big thing is not having to be wired to the sky.. Thanks again, captgoul