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vapor trail

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Unread 04-11-2008, 11:08 AM
Silver Member
Join Date: Jan 2008
Location: Elko, NV
Posts: 461
Do you see the animal running around behind him?

I see the vapor trail in your video. But what caught my attention is at the beginning of the video, after he shoots, some animal that I can't identify starts running around behind him after he turns and starts talking.... can anyone tell what it is?
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Unread 04-11-2008, 11:21 AM
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Join Date: Dec 2006
Posts: 346
Good eye!! The instant that he shoots, you can see the critter right above his rifle; it kind of looks like his dog
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Unread 04-11-2008, 04:39 PM
Join Date: Jun 2007
Location: Henefer Utah
Posts: 98
Yes it was my darn dog!
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Unread 04-11-2008, 10:50 PM
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Join Date: Jul 2004
Location: Texas
Posts: 6,876
What your seeing is the shockwave produced by the bullet.

This shock wave destorts the light waves making it visible
to the eye when looking through a spoting scope.

When looking through a spoting scope or a camera zoomened
up if you dont blink (Some times hard to do) you will see this
very often at longer distance.

This method is used by many long range target shooters who
are spoting for the shooter to call the shot on paper when shooting
rapid fire (10 to 20 rounds with out pulling and marking the target).

The best place to be to see the shock wave is directly behind and
just above the shooter with a good spoting scope on 15 power or
higher (I like 20 to 30 power) with the bottom of the field of view
on the center of the target. This prevents the bullet path from passing
above the field of view of the spoting scope.

In high humidity this schock wave will be even easer to see .

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Unread 04-12-2008, 07:52 AM
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Join Date: Mar 2004
Location: Las Vegas, NV
Posts: 610
well said. That was the point that I was trying to make. Here is a picture of that wave moving from the nose of a .308 bullet.

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Unread 04-15-2008, 10:45 AM
Silver Member
Join Date: Jan 2007
Posts: 184
Try as I might, I couldn't see what I would identify as a vapor trail in the video.

I did see what I would describe as the effect of the gas and bullet exiting the muzzle.

I have seen video of jets flying at high speed at very low altitudes, over water, and there is a very visable formation of an area of compressed air/moisture as the aircraft passes the camera; also a very visable disturbed area on the surface of the water.

YouTube - Supersonic F14 flyby
YouTube - Supersonic F14 Flyby

Last edited by Jim Oliver; 04-15-2008 at 10:58 AM.
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Unread 04-16-2008, 09:16 AM
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Join Date: Mar 2008
Posts: 48
Originally Posted by Jim Oliver View Post
Try as I might, I couldn't see what I would identify as a vapor trail in the video.
The vapor trail is pretty evident in the video on the 500 yard clays... but, you need to look for it. The trail comes in from the left of the screen just above the clays, and follows the bullet down to the targets. If you watch the grass on the left side of the road, just above the clays... you'll see a disturbance in the air just after the shot is fired and just before impact. There's no way that could be from gas/bullet effect from exiting the muzzle, as it occurs a quarter-mile down range. Once you start to notice vaper trails, you'll see them a lot... I notice them almost everytime I see something get shot on TV now.
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