Wind and Uphill/Downhill Shots

[Mram10us]

Wind is a variable of time of flight which means total distance. Gravity, not so much

 

[waveslayer]

I take issue with that example. The bullet is still traveling at 500 yards despite the angle. The effects of gravity act like, in your given example that it's 400 yards but it's still traveling 500 yards. You need your dope for wind to represent the full 500 yards and your drop will be your slope dope.

Plug in all the same data using 500, 600 or whatever distance. Keep everything the same in your ballistics app... now just change your shooting angle... it will adjust, I promise. Pick 1000 yards, you adjust your angle of fire... it will change your drift and your windage because as you move up or down the distance to the target will change.. thus the time of flight decreases, changing your adjustments.

Plug it in and check it out... again I promise it will change even if you keep the distance 1000 yards

 

[dfanonymous]

Here's what I'm referring to, as you change your degrees up or down your wind values will change as well. Starting from 10 degrees working up to 75 to iterate what I mean... I kept everything the same, 1000 yards using a 6.5 Creedmoor. Both elevation and windage will need adjustments based on your angle of fire

Right, I get it. What I'm saying is that which adjustment that needs to be selected is your 0 degree shot distance, true distance, rather than corrected slope distance for wind. That's the whole point of this thread is "does the calculator do this?" Trasol doesn't. It over corrects for you.
1st image using trasol is no slope, no wind, no spin. This is our baseline.
2nd image should be the correct wind (in a perfect world) but with no slope meaning drop is wrong but wind is right.
3rd image is wrong wind but correct drop because of a 20 degree slope.

 

[waveslayer]

Yes gravity won't change... but the bullet's time of flight will change thus requiring different adjustments based upon the TOF. Very interesting topic for sure

 

[memtb]

Basic ballistics, but the op was asking about the software knowing this and people aren't answering it. Squirrel!

I guess that I didn't read his post very carefully! I guess that was the reason it looked so simple! memtb

 

[Mram10us]

Wave, so that answers the ops question about some apps wrongly computing winds.

 

[Mram10us]

I played with my shooter app and it seems to compute the windage correctly. At 1000yds with a 10mph wind both level and 90deg down

 

[Mram10us]

Good stuff guys. This is how we all learn and get better.

 

[BrentM]

The bullet is exposed to the entire range not the compensated or adjusted range. This everyone should know by now. Shooter for example, looking at 1 mile and 20 degree slope, 10 mph, changes wind by .2 moa or 4 inches. It's very minimal depending on the case. So in this example also, wind has been reduced to some degree. So the point, even shooter is showing a reduction in wind whereas possibly it shouldn't. However, tof for the 2 exercise is what is different. The app is using a the tof to the target as the wind exposure. In my example the time difference is .011seconds.