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WIND


deadeye ive
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Was out yesterday with the FAC Airgun and took the opportunity to do abit more zeroing with the .223 :P

 

Now I happen to have a anonometer which also takes the temperature as well as measures wind speed :P

 

My question is as follows ........What effect will wind have on a .223 at 100 yds ?

 

Here is some required data for the ballistic program unless any one as personal experience :P

 

Area (sea level).....Uttoxeter ,Staffs

Temp 18 Celsius

Wind ........Left to right 5 M/S

Bullet ......,,.223 50g hollow point ,American Eagle by federal

Distance 100 yds

Rifle ....Tikka M595

Ok away you go fellas

 

I'll reveal the actual in the field results later

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Was out yesterday with the FAC Airgun and took the opportunity to do abit more zeroing with the .223 :P

 

Now I happen to have a anonometer which also takes the temperature as well as measures wind speed :P

 

My question is as follows ........What effect will wind have on a .223 at 100 yds ?

 

Here is some required data for the ballistic program unless any one as personal experience :P

 

Area (sea level).....Uttoxeter ,Staffs

Temp 18 Celsius

Wind ........Left to right 5 M/S

Bullet ......,,.223 50g hollow point ,American Eagle by federal

Distance 100 yds

Rifle ....Tikka M595

Ok away you go fellas

 

I'll reveal the actual in the field results later

 

well acording to point blank it should be 1.09 inches with a 10mpg wind, so one would guess .5" with a 5mph wind?

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About that yeah. :P

I got a 1 & a 1/2 inch group at 200yds and it went 1& 1/2 inches to the right with a 20mph wind from left to right last week, using the same ammo, but in my CZ. :P

Edited by Frank
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Come on Ive.

 

This metres per second is no good for us old gimmers who still work in feet per second !!! :P

 

As Fister said we need the BC and MV please :P

 

Can't you work this out youself on the JBM programme I put you onto ?? :P:drool:

 

:good:

 

Thought I'd give the forum something interesting to occupy their minds sniper :good:

 

A google search on Federal American eagle would give you all the reqired data for fine tuning

 

I think The BC is 0.266

MV ,Muzzle velocity is 3400 fps ,2900 at 100yds

Geeze ,I seem to have opened up a can of worms here :P

5.5 meter/square second = 12.3031496 mile/hour second

5 meter/square second = 16.4041995 foot/square second

 

As for working it out my self i'm a lazy *** :P

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Any way ,here you go ,,,,,,,,,,,1.5 " which I was shocked by ,......Prior to this the zero was checked recently and nothings moved :P

The No 7 S/B reticule is not the finest of crossairs for Targeting :P .............There is 4 shots in the picture with my POA where the matches Cross

 

post-1945-1146848851.jpg

 

 

Here is the damage caused to 10mm M/S Plate (8mm penetration ) which incidently was fixed to a 16mm thick plate on my portable backstop

 

 

post-1945-1146849332.jpg

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Am I the only person who is distinctly worried about someone who owns an anonometer? :P:P

Lets put it like this Stuart ............I did'nt buy it :good: ............Obviously you are,nt aawre of working on portable lift platforms where you need to know the wind speed if your taking it up to 90 feet :good:

 

There is alot of history with me and that tape .............And it ain't getting any longer if you know what I mean :P

 

Thanks for the input fellas :P

 

+ any one that does work it out on a program :good:

 

Looks like you've been measuring something thats 3 inches an awful lot ive :drool:

DOH! :P .............Posted at the same time ...............We're on the same wavelenght mate :good:

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