By: Boyd Allen

Boyd Allen — Sat, 26 Dec 2015 08:40:30 +0000

I recommend that everyone with the slightest interest in this subject as it elates to shooting, click on the link that Steve has been so kind to provide. The demonstration is excellent and quite straightforward. Anyone can readily understand it. Once it has sunk in, I suggest that you consider that this is really two related subjects, one about global wind patters, and the other about external ballistics. Unfortunately statements that are true about the former, seem to have been widely misconstrued to apply to the latter. As one approaches the poles, the rotational speed of a point on the surface decreases to the point where at either pole, it is zero, and it is that speed that is proportional to the amount of corilois drift that a long range shot would have to compensate for. If the shot is fired toward the north pole, and the target is not at the pole, the bullet would strike to the left, but if we think about it for a moment, visualizing what happening, if the direction of the shot is reversed, starting where the initial target was and going to the original firing line, from the perspective of the shooter, who is facing south, the bullet is deflected to the right. Also, if one fires parallel to the rotation in the same direction (west to east) the point of impact would be above the point of aim. The opposite would be true if the direction of the shot were reversed. shots fired at various headings neither parallel with the equator or toward a pole would be affected by the sum of these two effects, which would show as bullets impacting some distance diagonally from their points of aim. Again, what we seem to have here is large scale misapplication of statements made about global wind patters, and how they are generated, and external ballistics, but given the wide disparities in readers abilities to visualize, it is likely to continue unabated.

By: steve

steve — Fri, 25 Dec 2015 20:46:41 +0000

Found another video explaining spin drift:

https://youtu.be/ty9QSiVC2g0

By: steve

steve — Fri, 25 Dec 2015 20:30:20 +0000

Instructive video from MIT showing a simple demo of coriolis effect:

https://youtu.be/dt_XJp77-mk

By: Paul

Paul — Fri, 25 Dec 2015 19:31:24 +0000

Tried the shooters app for 10$, tried to open, did not, tried again, and again, then read the reviews, THEN asked for a refund……not a good track record so far.
I do need a good, better, best shooters program and would love to find one, but if it won’t open, it’s no good to this beginner.

By: Dustin Ellermann

Dustin Ellermann — Fri, 25 Dec 2015 17:17:41 +0000

Photo credit: Dustin Ellermann

Comments on: Shooting Science: The Coriolis Effect Explained

By: Boyd Allen

By: steve

By: steve

By: Paul

By: Dustin Ellermann