If a round is fired?
It's velocity is VERY high.
Even on a downward arc it's still much faster then just falling
from the sky.
If it fell from an aircraft overhead?
It could only reach it's terminal velocity.
Once that is reach it can not go faster without help.
Laws of Physics and all that.
It's like if I stood on the Empire State Building and shot a pellet at you.
Since the pellet is travaling faster then it's terminal velocity?
And it takes much longer for wind resistance to slow it down?
It's gonna do some serious damage!
Now if I just drop it?
It will hurt like a MOTHER!
Cause it can only reach a certain speed with gravity pulling it
and wind resistance pushing against it.
A heavy projectile will arc into the Earth before wind resistance
can slow it down to it's terminal velocity.
Unless you do a nearly vertical shot that is.
As the projectile would stall out.
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