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542458today at 12:10 PM2 repliesview on HN

Surprisingly, Coriolis at extreme ranges (like 5000 feet) can be relevant enough to be corrected for, but how much and in what direction depends which way you're shooting and where on the planet you are. There's a fun calculator here: https://codingace.net/physics/coriolis_effect_shooting.html


Replies

defrosttoday at 12:15 PM

It's ignored in practice when firing long guns at 5,000 yards.

The minuscule effect is overwhelmingly dominated by everything else. Heavier, longer range shells from naval guns, yes - rifles, no.

* Opinion of a ULR shooter: https://www.youtube.com/watch?v=KP7IKshdiiY

* Range Proof: https://www.youtube.com/watch?v=7owwTz7Z0OE

JKCalhountoday at 1:33 PM

(And what planet you're on.)