Hello Guys and Gals. Wondering if anyone has a link to a windage chart for a .308 / 24" barrel, shooting 168 gr that I can tape to my stock? Thanks in advance...
Fieldcraft Windage Chart
- Thread starter Lt_Kilgore
- Start date
Re: Windage Chart
It's handy to make one which looks like the one below. The columns across the top are wind speed in mph. The rows are distances in yards. That way, you can interpolate between both speeds and distances. The wind holds are in mils.
It's handy to make one which looks like the one below. The columns across the top are wind speed in mph. The rows are distances in yards. That way, you can interpolate between both speeds and distances. The wind holds are in mils.
Re: Windage Chart
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Lindy</div><div class="ubbcode-body">It's handy to make one which looks like the one below. The columns across the top are wind speed in mph. The rows are distances in yards. That way, you can interpolate between both speeds and distances. The wind holds are in mils.
</div></div>
Lindy, Thats exactly what I was looking for....
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Lindy</div><div class="ubbcode-body">It's handy to make one which looks like the one below. The columns across the top are wind speed in mph. The rows are distances in yards. That way, you can interpolate between both speeds and distances. The wind holds are in mils.
</div></div>
Lindy, Thats exactly what I was looking for....
Re: Windage Chart
Well...
That's for a load in one of my rifles. It's not universal. But you can use JBM Ballistics to make a similar one for your load.
Well...
That's for a load in one of my rifles. It's not universal. But you can use JBM Ballistics to make a similar one for your load.
Re: Windage Chart
Kinda sorta.
I used a ballistics program for my load to develop a set of constants for the equation:
<div class="ubbcode-block"><div class="ubbcode-header">Code:</div><div class="ubbcode-body ubbcode-pre" ><pre>
range(yards)/100 * windspeed(mph)
wind hold (mils) = -----------------------------------
constant
</pre></div></div>
I used the constants thus developed to program an Excel spreadsheet.
It's not perfectly accurate, of course, as it will change a bit with temperature at long distances. However, my ability to call the wind to a mph or so is not perfectly accurate, either.
It's a place to start, and displayed in that form, it allows me to make an educated guess on gusts.
Kinda sorta.
I used a ballistics program for my load to develop a set of constants for the equation:
<div class="ubbcode-block"><div class="ubbcode-header">Code:</div><div class="ubbcode-body ubbcode-pre" ><pre>
range(yards)/100 * windspeed(mph)
wind hold (mils) = -----------------------------------
constant
</pre></div></div>
I used the constants thus developed to program an Excel spreadsheet.
It's not perfectly accurate, of course, as it will change a bit with temperature at long distances. However, my ability to call the wind to a mph or so is not perfectly accurate, either.
It's a place to start, and displayed in that form, it allows me to make an educated guess on gusts.
