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texasmac
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Interesting experiment
Dec 21st, 2022 at 9:44pm
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This reminds me of the experiments the SAMI conducted 10 yrs ago about the danger of exploding ammo in a fire.  The result was there was no real danger to firefighters in their normal protective gear.   

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Wayne
  

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Schuetzendave
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Re: Interesting experiment
Reply #1 - Dec 21st, 2022 at 11:59pm
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I saw a canvas tent with multiple hand sized holes in it after some Boy Scouts threw a number of shotgun shells into a fire (ten feet from tent).

Fortunately they ran away before the pellets sprayed after the rounds ignited in the fire. 

So burning ammo appears to be mostly safe from flying projectiles - however it was not so safe with these shotgun shells thrown into the fire.

The other issue is what is the ammunition stored inside.
Ammo is supposed to be stored in containers that will not allow the build up of pressure before the expanding gases break up the container.
Unfortunately if someone stores the ammunition in a tight sealed metal container it could rupture from the expanding gases and throw out shrapnel as the container disintegrates.
Of course commercial ammunition is designed to disintegrate without buildup of pressures within the packaging.
So there is still a concern by firefighters as to how a private individual has stored his ammunition and whether he has followed proper ammunition magazine storage recommendations.
« Last Edit: Dec 22nd, 2022 at 12:15am by Schuetzendave »  
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marlinguy
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Re: Interesting experiment
Reply #2 - Dec 22nd, 2022 at 11:11am
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Loose ammo in a fire is one thing. Loaded firearms in a fire are a completely different hazard! Loaded weapons in a fire will eventually get hot enough to self ignite, and then they're as hazardous as if they were conventionally fired.
I have a Marlin lever action hanging over one of my gun safes that went through a fire. The lever is open, and a fired case it bent and mangled halfway out of the chamber. It got hot enough to fire, and that somehow blew the bolt back and opened the lever. But appears it was hot enough to cause the brass to stick as it blew the lever open.
There were 8 guns in this house fire, and the gunsmith who gave me this one was asked if he could save them, but wisely told the customer it wasn't a good idea.
  

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bnice
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Re: Interesting experiment
Reply #3 - Dec 22nd, 2022 at 2:17pm
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I believe The great fire (lightning strike) at picatinny arsenal ( Hatchers Note book) was what caused a lot of the safety changes for Ammo. One thing they changed was how high they stacked Ammo and amount a bunker could contain. The height because it caused enough compression to cause an explosive situation.
  
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Swamp Rat
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Re: Interesting experiment
Reply #4 - Dec 26th, 2022 at 8:19pm
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Brass fragments from cartridges may pose a greater risk than the heavier projectiles.

Many years ago I was stuck by a piece of brass from an unseen 30-06 cartridge in a fire pit that went off - went right though a leather boot and left me bleeding like a stuck pig!
For the rest of my life I will never blindly trust a fire pit without thoroughly checking it!
  

.... seems like you don't miss much
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gus
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Re: Interesting experiment
Reply #5 - Dec 29th, 2022 at 12:35am
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I was metal detecting in an old mountain camp grounds and was going around a fire pit.  I removed 8 live 30-06 rounds right along the rock ring.  All were together and very close to where the fire had been.  They had been there for quite awhile.
  
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wesg
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Re: Interesting experiment
Reply #6 - Dec 30th, 2022 at 7:16pm
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I, I'll blame myself, somehow wound up throwing a 410 shell in the trash. It wound up in the fireplace out in the patio. There was a 'whump', and the now empty case flew about halfway across the patio. Being a D-A kid, I threw it back in. The primer then went off with a bang, and flung it all the way across the patio.

Never seen a brass case cooked off, but I suspect it wouldn't be much different. The case is going to be the most likely projectile. Might raise a bruise, unless it hit you in the eye.
  
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Cbashooter
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Re: Interesting experiment
Reply #7 - Dec 30th, 2022 at 8:53pm
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IIRC the big NRA Handloading manuals had an article about cooking off cartridges.
  
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Otony
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Re: Interesting experiment
Reply #8 - Dec 30th, 2022 at 10:39pm
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wesg wrote on Dec 30th, 2022 at 7:16pm:
I, I'll blame myself, somehow wound up throwing a 410 shell in the trash. It wound up in the fireplace out in the patio. There was a 'whump', and the now empty case flew about halfway across the patio. Being a D-A kid, I threw it back in. The primer then went off with a bang, and flung it all the way across the patio.

Never seen a brass case cooked off, but I suspect it wouldn't be much different. The case is going to be the most likely projectile. Might raise a bruise, unless it hit you in the eye.


When I was young (and boy do I miss those days) my Dad would bring home firewood from anywhere he could find it…as long as it was free.

I spent a LOT of time swinging a maul at wedges, splitting wood in the backyard. Dad worked at Stanford University, and the campus was covered with eucalyptus trees. Whenever one split, maintenance would cut down the whole tree, and they were good enough to cut the rounds fireplace size. Splitting that stuff was miserable, it was very stringy, like splitting oak but much worse.

Somehow amidst  all this scrounged wood, a .30-06 shell found its way into fireplace. And no I had nothing to do with it.

That round cooked off with a bang and shot the base of the shell into my Mom’s face, hit her right over her eye and below the eyebrow. Somehow that became my fault, and when the screaming stopped, they realized from my white-faced stuttering that I had nothing to do with it.

She had a heck of a shiner for a few days, and I was assigned to inspecting each and every log from there on for “bullets”. Could have been much worse…..
  
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Re: Interesting experiment
Reply #9 - Dec 31st, 2022 at 10:26am
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would be interesting to see them do that with a safe full of powder.   

  

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