Range Report Help with metric weather data

[8541USMC]

Ok, I searched but didn't get any good returns. So here is my situation. I am an old school MOA guy. But I am about to have to start teaching metric data to people who grew up on the metric system. Us behind the times Americans use 1 MOA of elevation change per every 20 degrees of F temperature variance.
I need to know what data would I need to give them as a rule of thumb for degrees of C temperature variance while using a metric scope. Such as .5 mils of temperature elevation change for every X degrees of C temperature change. Any help appreciated. Old dog...new tricks.

 

[Neo]

Re: Help with metric weather data

If my math is correct given 20 degrees = 1 MOA. 20 degrees F = 11 degrees C. 1 Mil = 3.4 MOA then 3.4 X 11=37.4 degrees C / Mil.
But I could be wrong.
.

 

[BobinNC]

Re: Help with metric weather data

What is a metric scope? MILS is not metric but a measurement of angle. MOA is not inches but a measurement of angle.

But to answer your question:

If 1 MOA of elevation change for every 20 deg change of F

Then 0.3 MILS of elevation change for every 11 deg change of C.

If the scope in question adjusts in CM (and 1 CM @ 100 meters is the same as 0.1 MILS at 100 yds)


Then 3 CM of elevation change for every 11 deg change of C @ 100 Meters.


Bob

 

[TiroFijo]

Re: Help with metric weather data

In any case, the olf rule of thumb "1 MOA for a 20ºF change" is not accurate at all... YMMV

 

[Fred_C_Dobbs]

Re: Help with metric weather data

A change of 20°F= 20x 5/9 = a change of 11.1°C

It helps if you remember how both scales measure the freezing and boiling points of water. In Fahrenheit, water freezes at 32° and boils at 212°, a difference of 180°. In centigrade/Celsius, it freezes at 0° and boils at 100°, a difference of 100 degrees.

So in terms of change, 180°F is the same as 100°C, or 18°F is the same as 10°C. Or like I used in the formula above, multiply the change in C by nine and divide by five and you get the equivalent change in degrees F.