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Unknown explosive device

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Unknown explosive device

Unread postAuthor: SpudBlaster15 » Sat May 26, 2007 10:50 am

Does anyone know what this could be? My friend just spent 3 hours in the ER because one of them exploded in his face.

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Unread postAuthor: keep_it_real » Sat May 26, 2007 11:13 am

A pipe bomb?

Why though? Did your friend light it or was he just walking by one and it exploded?
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Unread postAuthor: super spuder » Sat May 26, 2007 11:13 am

Well i am no explosive expert, but that is very similar construction to a hobby rocket motor. hope your friend is ok.
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Unread postAuthor: keep_it_real » Sat May 26, 2007 11:17 am

A rocket motor has black powder inside the whole thing except for a hole where you put the igniter.
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Unread postAuthor: super spuder » Sat May 26, 2007 11:22 am

yea, but it is about the same, black powder inside a tube.
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Unread postAuthor: SpudBlaster15 » Sat May 26, 2007 11:23 am

It wasn't a rocket motor, or a pipe bomb. It appears to me to have some application in firearms, but I am not sure.

We found it at a gravel pit where paintball is played, and we ground some powder out of the sleeve to test it's composition. Sure enough, it was black powder. He then put an 8 inch sparkler in it, and immediately after igniting the sparkler, it exploded. It was about as loud as a 12 gauge shotgun, and left a 1ft wide crater in the side of a dirt hill. The dirt blasted into my friend's eyes had to be surgically removed.

I have no idea how it could have ignited so soon after the sparkler was lit.
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Unread postAuthor: mark.f » Sat May 26, 2007 11:29 am

Probably when you ground out some black powder, it loosened some on the top of the cylinder of packed powder, making it more sensitive, (more surface area), and a spark from the sparkler ignited it?

I know when me and my friend play around with flash comp., we always stick the fuse off to the side of the pile and upwind of it, so as not to ignite the pile with a spark. Was the sparkler directly over the device when he lit it?
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Unread postAuthor: jackssmirkingrevenge » Sat May 26, 2007 11:32 am

We found it at a gravel pit where paintball is played


Possibly implying it was some sort of pyrotechnic mine/flash device related to the game?
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Unread postAuthor: paaiyan » Sat May 26, 2007 11:38 am

jackssmirkingrevenge wrote:
We found it at a gravel pit where paintball is played


Possibly implying it was some sort of pyrotechnic mine/flash device related to the game?


But if it was a mine, where's the paint? One of my first thoughts was actually road flare. I doubt that though. Aluminum body would tell me it's not a rocket motor, unneeded weight.

Perhaps, maybe, it's some sort of demolition device, something used in construction.
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Unread postAuthor: SpudBlaster15 » Sat May 26, 2007 11:42 am

I have been searching Google images for "paintball mine", "paintball grenade", and "paintball explosive" without finding anything resembling the device we had. I believe it may have had something to do with paintball, but I am certainly no expert on the game.

Mark: My friend claims to have applied electrical tape over any exposed powder, but this was most likely the source of ignition, simply because I can't see how it could have otherwise occurred.
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Unread postAuthor: paaiyan » Sat May 26, 2007 11:53 am

Google isn't offering me much more than road flares, but all those sites say there's virtually no chance of those exploding.
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Unread postAuthor: mark.f » Sat May 26, 2007 12:13 pm

Did the gray cap have some sort of abrasive surface either on the outside or inside of it?
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Unread postAuthor: paaiyan » Sat May 26, 2007 12:14 pm

Yes, that would be a deciding factor to see if it was a road flare.

Also, about how wide was the thing?

EDIT: Oh my God, why didn't I think of this before. Could the metal aroudn the black powder have been magnesium and not aluminum? A lot of road flares combust magnesium to get a very bright light.
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Unread postAuthor: SpudBlaster15 » Sat May 26, 2007 12:24 pm

I didn't examine the cap too closely, but I am pretty sure it didn't have an abrasive surface on either side.

It was about 3/4" in diameter, and around 2 inches long.
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Unread postAuthor: paaiyan » Sat May 26, 2007 12:25 pm

Well now, that seems way too small for a road flare. Maybe a flare from a flare gun?

EDIT: Here's a pic I found of a flare gun, the size of the rounds seems consistent with your description.

<img src="http://www.lifesupportintl.com/shop/img/categoryImages/Survival/FlareGunOrion.jpg">
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