Ballistics on a Spinning Planet - Video

[Bryan Litz Ballistics]

This video discusses the apparent drift of a rifle trajectory due to the rotation of the earth. A physical explanation is given, then examples, and finally a demonstration of how to calculate corrections to account for the earths rotation.

0:00 Introduction
0:36 Pseudo Forces
2:05 Coriolis Effect
3:41 Eötvös Effect
5:12 Static Examples
6:08 Dynamic Animations
10:47 Applied Ballistics Quantum Application
13:23 Conclusion

 

[SNB]

Just published a new video about Coriolis Effect:



Coriolis drift happens because we're shooting between two points on a rotating sphere. It's one of the less understood variables in long range shooting, probably because it's so small and depends on weird things like latitude on the planet, and azimuth (direction) of fire. In this video, I show how Coriolis manifests as an apparent drift in long range rifle shots, and how to correct for it.

Enjoy️
-Bryan

Is the following statement true: the Coriolis effect is more related to the time of flight of the bullet than to the range of the shot itself?
If I shoot subsonic bullets 250-350 meters (mostly), then given the relatively long flight time, the Coriolis effect in this case must be understood and taken into account.
Although I use Kestrel and everything is automatically taken into account there, I was always interested in this nuance

 

[Bryan Litz Ballistics]

Is the following statement true: the Coriolis effect is more related to the time of flight of the bullet than to the range of the shot itself?
If I shoot subsonic bullets 250-350 meters (mostly), then given the relatively long flight time, the Coriolis effect in this case must be understood and taken into account.
Although I use Kestrel and everything is automatically taken into account there, I was always interested in this nuance

It's more a matter of muzzle velocity than time of flight.

There's more drift with greater distance because, in the case of vertical, the calculation results in a factor that adjusts gravity, which naturally affects longer range shots more than shorter range.