Which is the best wind meter for wind estimation

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Originally Posted by Callum

As long as you don't use my excuse of "can't see it? Must be in the black then" :thumbsup:

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That's been my go two call lately:D

kestrel 2500 does every thing you need
Full stop

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Originally Posted by Toby

Would the projectile going faster mean the wind is less effective unlike when its far out slowed down the wind will have more power over it?

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Yes but nearer the target there is less time/distance/flight path left to move the bullet off.

So the art is really looking close, mid and far and thinking. I try and look at about 1/3rd way as my main correction and tweak it a bit at 2/3rds. Listening to the old guys I think it takes 10 years+ to stand a decent chance of reading the wind right most of the time....or maybe im just slow.

Hey, hey, it's physics Friday :thumbsup:

@Gillie and @veitnamcam, remember this debate ?

So I was watching the Litz DVD last night, and here is what the man himself says:

It is commonly misunderstood that the wind blows on the side of a bullet, and that is simply not accurate.

Because a bullet is stable it will point its nose into the wind.

It will align it's axis with the gross air vector (which will be at an angle to the line of sight due to crosswind). The aerodynamic air vector is always aligned with the bullet axis. The small lateral component of aerodynamic drag force is what will act to pull the bullet away from the line of sight.

man having a headache and reading that wasnt a good idea

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Originally Posted by Bill999

man having a headache and reading that wasnt a good idea

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Bill wet your finger and stick it in the air. The side the wind is blowing from will get coolest first. Pick some grass and drop it from shoulder height. That should confirm your finger result. Now you have wind direction sussed and only have to work out speed.

I got one of these Wind Meter Specifications ? Shaka ? Weather Station Reinvented
does the job

Some more "geek" reading for those that are interested.

Pretty good info on forces involved in exterior ballistics. Interesting stuff about Magnus effect, and very cool info on yaw for over-stabilised projectiles - explains why a too short twist rate will cause a projectile fired at high angle to hit base first...

How do bullets fly?

To answer an earlier question, it's the wind nearer the shooter that demands the most attention. Ask any experienced NRA shooter.

One way of looking at that issue is that any deviation in the early stages is multiplied many times over the total flight