Element Ballistic Apps help

[Jack.K]

I’ve been playing with the Element Ballistic Apps lately and noticed something not matching to my other ballistic app. I inputted the same parameters as I have on StrelokPro and the result on the Element Ballistic app is showing POI 0.45 inch to the right on a target of 100 yards even though both app has the wind speed set to zero. This is based on a right rifling twist rate of 1:19 and if I change the twist rate to left then the POI shifted to 0.45 inch to the left. If I set the app to smooth twist rate then the POI has not shifting. Do I have a bug on this app or there is something more to this. Any ballistics gurus can input on this subject.

 

[JEFFPPC]

Over distance you will be influenced in the direction of your twist. It is giving you good information. There is a term that escapes my old brain right now, lol.

 

[shambozzie]

Check to see if Coriolis effect is off. This is on Strelok pro. Not familiar with your app

 

[Jack.K]

After Adding spin drift to results on StrelokPro did the job. I learned something new today. Thanks for the inputs.

 

[Ballisticboy]

Pellets, when fired from a right-hand twist barrel, drift to the left, not the right. Your predictions would be in the right direction for slugs or bullets. It would appear that the writers of the software do not know the difference between aerodynamically stable projectiles and aerodynamically unstable projectiles.