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Thread: Shooting in the rain

  1. #1
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    Shooting in the rain

    G'day.

    When shooting on a rainy day, what is the affect on a projectile when it hits a raindrop?

    * doghunter *

  2. #2
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    I don't believe it hurts anything. I have seen some of the best groups ever fired in 1000 yard BR in the rain. If it would hurt it surely would show up there. Matt

  3. #3
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    Quote Originally Posted by dk hunt 14 View Post
    I don't believe it hurts anything. I have seen some of the best groups ever fired in 1000 yard BR in the rain. If it would hurt it surely would show up there. Matt
    I HAVE HAD THE SAME OUTCOME AS MATT........ bullet never hits a drop.....cause of the air wake in front of it.....

  4. #4
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    I had a math whiz do some calculating some years ago and he determined that in a light rain a bullet would have little chance of hitting a rain drop. Certainly, the harder the rain, the greater the chance.

    You will know when your bullet hits a raindrop. It makes a clean, ragged hole not necessarily where you wanted said hole to be.

    If it's raining, ALWAYS put a drizzle deflector such that the roof doesn't drip in your line of fire. You probably won't do this until you see the results but don't say I didn't tell you so.
    Last edited by Wilbur; 10-17-2015 at 01:21 PM.

  5. #5
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    Heavy rain / 6PPC

    I shot the NBRSA Nat’s at Kelbly’s around 2003/2004 in a heavy rain, on that relay of 60 shooter’s shooting at 200 yds there were more groups over 2 inches then under and very few of the groups where under 1 inch. Heavy Rain and 6PPC don’t mix well for group shooting.
    Chet

  6. #6
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    It throws them way out!

  7. #7
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    Quote Originally Posted by Wilbur View Post
    I had a math whiz do some calculating some years ago and he determined that in a light rain a bullet would have little chance if hitting a rain drop. Certainly, the harder the rain, the greater the chance.

    You will know when your bullet hits a raindrop. It makes a clean, ragged hole not necessarily where you wanted said hole to be.

    If it's raining, ALWAYS put a drizzle deflector such that the roof doesn't drip in your line of fire. You probably won't do this until you see the results but don't say I didn't tell you so.
    Right! I had this happen to me a few years back in a $1000 money shoot. Rain was coming down in buckets, flags were motionless, gun was driving nails at 300 yards...until...

    I was in the running to win the money when I had a shot drop several(?) rings low and just a tad right or left..I can't recall which. To this day, I say it was water coming from the front edge of the roof that did it. Of course, it could have been a number of things, but never had it happen like that before or since. Oh well....I make very sure to be cognizant of it now.

  8. #8
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    About the only thing you can do is make sure you don't shot through a stream running off the roof. Beyond that there's nothing you can do but shoot and hope.

  9. #9
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    I have never seen this happen. But we shoot a lot bigger bullets and faster twists. If it rains too hard we can't shoot because we can't see at 1000 yards. I believe when it rains lightly the better groups come because we can see a lot clearer and usually no mirage. And usually the winds settle and hold. At longrange they both can hurt you some. Matt

  10. #10
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    A raindrop is not going to get past the Mach wave attached to the front of a supersonic bullet.

  11. #11
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    Quote Originally Posted by coyotechet View Post
    I shot the NBRSA Nat’s at Kelbly’s around 2003/2004 in a heavy rain, on that relay of 60 shooter’s shooting at 200 yds there were more groups over 2 inches then under and very few of the groups where under 1 inch. Heavy Rain and 6PPC don’t mix well for group shooting.
    Chet
    I see it every time it rains bad. I guess the rain affects the mach wave more at 3400fps than 2950

  12. #12
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  13. #13
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    Quote Originally Posted by brickeyee View Post
    A raindrop is not going to get past the Mach wave attached to the front of a supersonic bullet.
    That's right. The mach wave keeps the moisture off it but don't let a water drop hang off the barrel. I have and it can really de-tune the barrel
    Andy.

  14. #14
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    Quote Originally Posted by brickeyee View Post
    A raindrop is not going to get past the Mach wave attached to the front of a supersonic bullet.
    A common misconception. Air, water, whatever, flows through the Mach wave, which is just a transition in fluid properties, including pressure and density.

  15. #15
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    Two observations: I was scoring for a Marine sniper who went to a 1K match with his .308 issue rig for the practice, before there was an F class. He hit the spotter in the x ring about 5-6 times, went clean until the 20th shot, and it was a high 9. It started to rain halfway thru the relay, and my theory is that a drop landed in the muzzle, because he said that it felt like all the other good shots. BTW< he loaned me his USMC issue spotter scope, and I could see the holes in the spotter!
    Other time a guy was shooting at a local ringer target at 100 yds in a downpour, and I could see a cloud of mist erupt on one shot about 60 yds out, and it still hit the ringer(but this was an AR firing at a 8" disc at 100 yds).

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