Ballistic apps and powder temp

[4xforfun]

I have the Shooter app on my phone. When setting up a bullet it asks powder temp. Now.....I ASSUMED (I know, I know) that the app "adjusted" final FPS in the firing solution based on the fact that it asks for ambient temps when inputting shooting variables such as distance, alt, etc..... Now I know that temp is HUGE when it comes to EXTERNAL ballistics....and also some difference in FPS due to powder temp.

The question is.....does an app figure in powder temp when calculating your firing solution? Does it figure that your FPS is slower if the current temps are lower than your imputted initial powder temp and higher if it is hotter? I used to think it did, but am guessing not. If not, why ask the question in the first place? If not, that makes the chrono that much more important for LR hunting and PRS type shooting.

Just waiting for the snow to melt,
Tod

 

[Jarhead6870]

When Shooter asks about Velocity Variation (fps/deg) and Powder Temp, it wants to know these inputs at the time of your taking the muzzle velocity. It then will use this data to recalculate your MV when you enter the current temperature in the Atmosphere section on the main page of the program. If you have activated this function by entering Vel Variation and Powder Temp in your ammunition profile, you will have a Powder Temperature section immediately after the Atmosphere section on the main page. This will show you the recalculated MV and ask if you want to use it for your firing solution.