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Old 31 August 2017, 11:19
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Does rain affect ballistic?

I searched a few shooting/weapon forums, but only got everything and its opposite
Couldn't find a definite/proper answer...
So as always I come back to the place where I TRUST people
I know that humidity can affect your POI but all in all, does rain really affect your bullet? (5.56 or .308)
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Old 31 August 2017, 11:53
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Quote:
Originally Posted by Armageddon View Post
I searched a few shooting/weapon forums, but only got everything and its opposite
Couldn't find a definite/proper answer...
So as always I come back to the place where I TRUST people
I know that humidity can affect your POI but all in all, does rain really affect your bullet? (5.56 or .308)
Folks will differ on the answer. My experience has taught me that rain will have minimal effect on a stable bullet in flight. Anything other than still, dry air can have an effect on an unstable projectile in flight.
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  #3  
Old 31 August 2017, 13:50
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Long story short.. no, rain does not affect.

Sent from my Holiday Express room.
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Old 31 August 2017, 15:11
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Rain can and often does effect the shooter. Just sayin'...
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Old 31 August 2017, 15:30
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As Gavin noted....everything has SOME effect. I have never seen any NOTICEABLE effect from rain any different from humidity. Like everything, small effects grow larger just like a minute of angle. The further the range, the greater the effect.

My understanding of why rain doesn't have much effect is similar to why the hollow point of an SMK, and the differences in that hollow point from one round to the next doesn't have an effect.
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Old 31 August 2017, 15:52
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Rain does have some affect, as does the Coriolis Effect, wind, temperature, humidity, and myriad other conditions.

But, the degree to which the projectile is actually affected depends on the "strength" if you will, of the input. Wind has a large effect, as does temperature and to a lesser degree, humidity. Rain's effect on a bullet is, generally speaking, small enough that the vast majority of shooters can't tell any difference. What these less experienced shooters will note, however, and will often attribute to the rain, is the change in bullet placement on the target that is actually the result of factors that have a greater effect on the bullet: increased humidity, decreased temp, generally dimmer light, and possibly increased wind.

Shooting in the rain isn't so much fun, but it does go a great amount of good in concealing a sniper's position when shooting. Practice, practice, practice.
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Old 1 September 2017, 03:18
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Thanks Gentlemen, that's exactly what I wanted to know!!
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Old 1 September 2017, 06:35
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I should have clarified, rain will have no noticable effect on the ballistics of the round, for most shooters' application.
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Old 1 September 2017, 07:01
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I've shot in some fairly heavy rain with good success. When it really starts raining hard you can't see far enough to make shots long enough to really have an adjustable effect. So in short, if you can see it, you can hit it without much change. At extreme long range it may be enough of an effect to be noticeable, but you can't see that far in the rain anyway, so it's sort of a moot point.
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Old 1 September 2017, 07:07
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Quote:
Originally Posted by Gsniper View Post
I've shot in some fairly heavy rain with good success. When it really starts raining hard you can't see far enough to make shots long enough to really have an adjustable effect. So in short, if you can see it, you can hit it without much change. At extreme long range it may be enough of an effect to be noticeable, but you can't see that far in the rain anyway, so it's sort of a moot point.
Truth.
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Out of the night that covers me,
Black as the Pit from pole to pole,
I thank whatever gods may be
For my unconquerable soul.
In the fell clutch of circumstance
I have not winced nor cried aloud.
Under the bludgeonings of chance
My head is bloody, but unbowed.
Beyond this place of wrath and tears
Looms but the Horror of the shade
And yet the menace of the years
Finds, and shall find, me unafraid.
It matters not how strait the gate,
How charged with punishments the scroll,
I am the master of my fate
I am the captain of my soul.
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  #11  
Old 1 September 2017, 09:33
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Quote:
Originally Posted by Gsniper View Post
So in short, if you can see it, you can hit it without much change
That sums it up.
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Old 1 September 2017, 21:22
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I shot in a down pour in the canadian forces matches in Ottawa once. I think Boatwreck was my partner. Notes of note....

1. Water got all over the objective lenses. We were using an M3A with its sunshade and had minimal effect on visibility. However the rest of the guys were using Unertls with no sun shade and couldnt see shit.

2. When you are looking through optics in the rain, you are taking ALL the rain between you and the target and cramming it onto ONE focal plane so its hard to see. Back off on magnification if you can. (Makes reading wind real easy though).

3. Ballistics wise the air dam effect and sonic wave is acting like a force field keeping the water off of the projectile so its not like shooting through a wall of water.

4. Its a cool visual watching trace through the spotting scope as the shock wave is exploding rain as it tears down range.

5. That was the same instance they had a tornado near the range and never sounded the alarm...

Fun times..
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Old 1 September 2017, 21:25
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Good thing you didn't have to refer to the tornado wind chart I know you had a reduced scale copy of on your watch data book.

Ran into an old Piso of yours on a job last week. Tom Bullins.
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Old 1 September 2017, 21:27
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Bullins?? Cool. Whats he up to?
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Old 1 September 2017, 21:30
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Gun-whoring around like me. I'm too lazy to go get a real job.
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  #16  
Old 1 September 2017, 21:33
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Once I get my ticker back to normal I would like to become a whore again.
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Old 1 September 2017, 23:06
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Competed in a couple of sniper tournaments in Djibouti during the '80's only using that stoopid 7.5 mm round. 750 m head shots, simulated, didn't matter if it rained or not, always scheduled over the day every year it rained.
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Old 3 September 2017, 13:14
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I wrote this last year. https://mdttac.com/content/the-four-...ked-eventually

Check out question #4
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Old 25 September 2017, 00:47
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Question Rainy day blues

FWIW, I had a good friend who died about ten years ago. He was an avid shooter and bench rest competitor. He was a friend of Walt Berger of Berger Bullets. I asked him about the rain and it's effects on target. He said in his testing that it was a non-issue but said if you get "even a small amount" of water in the bore that it will throw a shot out of the group. I always remembered that but never tested it for myself, and I can't remember how he conducted his tests. Maybe someone can verify?
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