something <$100 if possible unless there are have to have features...that are above that.
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something <$100 if possible unless there are have to have features...that are above that.
Even the basic ones start at like $180 a man
A bit of grass thrown in air would be excellent value for money :D
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Ill sell ya a wet finger for a couple Hundy?
Kestrel make good stuff but not cheap.
The 2500 is a good unit.
Sent from my iPhone using Tapatalk. So please forgive my sausage fingers!!!
Be interesting to see what suggestions you get Steven
IMO wind meters are not worth the money... They can only tell you what the wind is at the shooting position, not halfway to the target or at the target, where it really matters
They are good for confirming your wind estimation skills..., but between flags, vegetation and mirage there is a lot of info out there.
There is an iPhone app that uses microphone noise to calculate wind speed, must be an android version out there as well, not sure how accurate though.
Dave, we don't want to hear about your "wet finger" ok.... too early in the morning :D
Yea mine was handy to learn to gauge the windspeed on a whole.... generally my best wind estmations come from looking at destination vs shooting position and working it into shooting over a valley (must faster in middle) over the ground on flat (fairly constant) or over a spur (tendancy to push poi up) but u also have to remember wind at shooting posution had 100% effect and wind half way flight time wise has 50% effect... as winds not actually pushing bullet sideways its turning it and changing its direction of travel!!!
I use my ear. If i hear a brrrrrrrrrrrpppp it means someone has wind....
There is sound advice above about reading the wind from indicators between you and the target. I bought one. Played with it around the house and am yet to use it hunting. Have used it on the range the odd time to confirm estimation but bullet strike during practice tells you more about the accuracy of your estimation and gets you better tuned into subtleties and causes of variation
Anemometers can be purchased at dick smith electronics or jaycar, prices start at about $12 and go up from there.
I use a Kestrel 4500,
the wind meter is fine but its the temp/pressure/humidity i use the most
With the wind meter you can see what speed its doing around you and how the vegetation is moving then use this info to gauge how that may apply down range
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Interesting physics debate that one.Quote:
Originally Posted by baldbob
2 schools of thought
A) wind at start is more important, coz it kicks the projectile off its course, and sideways momentum does the rest
B) wind is like gravity, it has more of an effect during the later stages of projectile flight, when the projectile is traveling slower and takes more time to cover distance, giving the wind more time to have an effect.
I take option A as the bullet gets pushed at an angle by the wind so therefore the further it travels at that same angle the further off target it goes. If you believe the bullet travels parallel to the target then wind push would only affect the bullet when it pushes so therefore a 1" push sideways would always remain 1" no matter how far away the target is.
You are correct in option a ebf however as option b suggests the bullet is not effected by sideways momentum as such the wind changes the course of the projectile by slightly turning it in the direction away from the wind! Well thats how litz puts it and i think litz has solid backup to his theorys..Quote:
Originally Posted by ebf
You will care to note i said half way through bullet "time of flight" not distance..
COMPOUND you are way wrong!
Yup, now we are getting warmer :D
C) it's all about drag and how it causes the bullet to face into the wind
Also consider that this is a 3D problem, wind can be left to right, front or back, and also up and down, or any combination of the above....
Well, I'm off to go and battle with the wind at Seddon range, shooting 900 yds today, it's pretty gusty, so should be an interesting afternoon...
That's why I ordered one last week, from dx.comQuote:
Originally Posted by ebf
I would have no idea how to estimate wind speed so I figured this would help me learn.
They're very cheap, around 10 bucks from memory
Hmmm, think we'll write today off as a learning experience :DQuote:
Originally Posted by ebf
Ran out of elevation, and had to start using mildot holdover, and during the second string I somehow managed to get confused between wind direction and correction, and kept dialling more and more off the target :sick:
When I have a spare $18.70USD I will get one of these. Doesn't give you Baro pressure but will be a good indication of wind speed. The way I see it is you can see what the speed is where you are and what the effect is on the grass, tussock, trees and compare that to what is down range for a best guess. Can't hurt??
GM816 1.5" LCD Portable Digital Wind Speed Meter Anemometer - Black + Yellow (1 x CR2032)
I would thank that's A and has been pretty much confirmed at least for me. Hence a wind meter local to you is of some value, not sure if $100+ is worth it but I know wind is the hardest thing to me allow for....proved that again today at 900m....Got it right, 3 x 5s and vs in a row wind moved and then 3 x 2s....bugger....made 2 x 1moa corrections in those as well ...so the wind must have shifted 3 moa on me.Quote:
Originally Posted by ebf
:roll:
Free shipping to NZ so for $18US Im ordering one to play with.....EBF you want me to get you one?Quote:
Originally Posted by Normie
naa tx, will have a play with yours ;)
Bought ammo for next weeks compo, so I am officially broke :D
The way I see it is you can see what the speed is where you are and what the effect is on the grass, tussock, trees and compare that to what is down range for a best guess. Can't hurt??
No, great idea for $25 ish NZ IMHO, Im going to order one, thanks for the site....they have digital calipers as well...might take a punt on one of those as well.
LOL, fair enough and no probs....btw how many rounds did / do you need?Quote:
Originally Posted by ebf
dunno if im shooting or not yet, after today, probably not LOL, damn wind.
:oh noes:
Im doing the admin'ing / registration, 730am....have to get my teenager out of bed at 630am that will be fun.
:omg:
btw today was the first pain free shoot in 6 weeks
:D
these pills are great
:roll:
5 strings - 60 rounds, doesn't look like we will do teams event on sun, at this stage only 2 shooting
300/500/600 on sat
800/900 on sun
Wind estimation techniques (mph)
1-3Flag angle:3-5
Vegetation: tall dry grass
Mirage: boiling
Sensation: barely feltFlag angle: 155-7
Vegetation: large leaves
Mirage: 30 degrees
Sensation: felt on faceFlag angle: 307-9
Vegetation: small leaves
Mirage: 45 degrees
Sensation:Flag angle:9-12
Vegetation: short needle trees
Mirage: horizontal, wavy
Sensation:
Flag angle: 4515
Vegetation: brush & trees
Mirage:
Sensation:Flag angle: 6020
Vegetation:
Mirage:
Sensation:Flag angle: 90
Vegetation:
Mirage:
Sensation:
Winds value based on direction
90 / 9 o'clock, 3 o'clock - 1.00
60 / 8 o'clock, 2 o'clock - 0.85
45 -0.70
30 / 7 o'clock, 1 o'clock - 0.50
15 - 0.25
00 / 6 o'clock, 12 o'clock - 0.00
Correction formula:
(Distance [1/100 yds] x Wind [mph]) / Constant = MOA
There are different theories about the constant, to keep it simple, just use 12
So 10 mph wind from 3 (full value) @ 500 yds
5 x 10 / 12 = 4.16 MOA correction
308 Palma target loads only, is there anything else to shoot ? :P
Well, most 308 should be close, formula was USMC for 168 bt, I think
No specific to 308...Quote:
Originally Posted by Tussock
So in other words Tim, there is no correction required for your 6.5:thumbsup:
Hmm yes, the miracle 6.5.
I've heard that if you hold the rifle upside down, there is no drop, so maybe a tilt toward the wind will sort out drift ;)
Quote:
Originally Posted by ebf
You got it mate. I only compensate for spin drift out to 600 no matter what the wind, in my 6.5's :thumbsup: Jokes aside I remember removing nothing but spin drift off a .50 at a 1000m for central hits. There was a full value fresh, as well;)
Reloaders has one for $80 I think but ive ordered a cheapy from dx.com for $19us....if its junk, its junk.Quote:
Originally Posted by baldbob
Trade has some for 30 bucks