If wind -- a compressible gas -- can move a bullet in flight; can rain, a non-compressible liquid do the same?
I'm talking about enough to make actual adjustments on the scope.

Theoretically yes. In the times I've shot in the rain, its only been to 600 yards or so, and I saw no noticeable difference in dope.

I have not noticed a problem with centerfires, but with rimfires, you will get occaisional random fliers that go 2-4 moa LOW which tells me that those are the bullets that hit raindrops.

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God shoots a Remington 700, drives a Chevy Truck and carries a Glock 19.
I don't do any of those things.

Just a thought on the subject:
With a centerfire round, we are talking speeds at muzzle of 2500 - 3000 fps. The shockwave produced in that dense air may actually "push" a raindrop away, as a matter of inertia. Wind in always pushing on the round thus pushing the round and the shockwave evenly at any given moment. Now with a stronger down pour, visibility would suffer thus a clean shot couldn't be made.

With a rimfire, much smaller bullet at a much slower speed. So with my thoughts on this, a rimfire in a misty drizzle would be the same as a .308 in a light rain.

Anyone care to put this idea to the test?

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This is not about land or money...but the one thing that no man should never be able to take from another man: the freedom to make his own choices about his life, where he'll live, how he'll live, how he'll raise his family
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In the face of a crisis, a failure to act is the first act of failure.
There are no stupid questions, just stupid people asking questions.
Sweat saves blood, blood saves lives, but brains saves both.

I've been told by working mil snipers that rain has no affect on bullet flight. No sure how that is possible but I've heard it from a pro.

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Upgrade your AICS: http://www.victorcompanyusa.com

_________________
In the face of a crisis, a failure to act is the first act of failure.
There are no stupid questions, just stupid people asking questions.
Sweat saves blood, blood saves lives, but brains saves both.

_________________
God shoots a Remington 700, drives a Chevy Truck and carries a Glock 19.
I don't do any of those things.

_________________
Upgrade your AICS: http://www.victorcompanyusa.com

_________________
Frank

One rifle, one planet, Holland's 375

The only water I worry about is the water in my knees. Oh, water goes well with Scotch

_________________
In the face of a crisis, a failure to act is the first act of failure.
There are no stupid questions, just stupid people asking questions.
Sweat saves blood, blood saves lives, but brains saves both.

_________________
Frank

One rifle, one planet, Holland's 375

_________________
In the face of a crisis, a failure to act is the first act of failure.
There are no stupid questions, just stupid people asking questions.
Sweat saves blood, blood saves lives, but brains saves both.

_________________
God shoots a Remington 700, drives a Chevy Truck and carries a Glock 19.
I don't do any of those things.