Iphone Applied Ballistics Help

[kbaerg]

I am helping a friend get Applied Ballistics on his iPhone and am having a hard time with his setup. I have been using AB on my Android for a while so I know my way around ( I Think). what I am running into is when we setup his 260 ackley, his 100 yard zero is not correlating. It's telling us to dial DOWN and is showing his zero at 165. I am including all the pictures off his phone with the setup. hopefully it's input error someplace I'm missing. I sent him home and said I would look into it and ask here. (Sorry about the rotated pics.)

 

[kbaerg]

Last pic showing the 100 yard zero off. this is what is puzzling me and him.

 

[Boxcar77]

Go to the environment screen, the one right before the data card. Go too wind speed and enter zero. I believe windspeed is set at 10mph from the factory. The 10mph will change your zero if it's zeroed in no wind.

 

[DocUSMCRetired]

This is due to aerodynamic jump. If you set the wind speed to 0, it will go away. If you reverse the wind direction between 3 and 9 o'clock you will see this shift.

 

[kbaerg]

O.k. thanks Doc. I will give him a call and have him try it.