Wind Conditions 001 - Head Wind



In an effort to understand wind, I'll post some details about common conditions that might not seem obvious to everyone. This post will discuss head wind, but it applies to tail wind to some degree as well.

If you look at the illustration You got your position, and the target at the other end of the range. And behind that your typical backstop in form of a berm. When shooting at targets in head wind, you don't really have to account for holdover in terms of drop caused by slowing of the projectile. But this only holds true if the berm/obstacle is relatively far behind the target. If it is close to the target, I would say within 4X the height of the berm in relationship to the ground level. Let's for argument sake say the berm is 10ft tall, then if the target is within 40ft of the base of the berm, you should be accounting for the turbulence caused by it. 

The same principle apply if you have a tail wind, and you have a structure you sit under.  That will cause the same type of turbulence, experienced as a downdraft causing the trajectory to drop quite significantly. The Windmeister have a horizontal vane that is calibrated to account for the vertical component of the wind. It does also have a vertical vane for straight on head/tail wind, but it is calibrated very different than the up/down vane. it will only move if the wind is extreme, the base setting is in the 25-60mph. Users can take this vane completely off, and all that is done is removing that particular axis being read, leaving the 4 other directions intact.

I will consider placement of them in a separate post.

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