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Thread: Heat + primer = ?????
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June 25th, 2009, 06:59 PM #1
Heat + primer = ?????
Probably a dumb question, but can ambient heat alone set off standard primers in modern cartridges? If so, how hot would it have to get?
"When law becomes despotic, morals are relaxed, and vice versa."-- Honore de Balzac, The Wild Ass's Skin...huh, huh..Balzac...Wild Ass...huh, huh
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June 25th, 2009, 07:09 PM #2
Re: Heat + primer = ?????
If all my reloading supplies weren't packed away for home repairs I could test that for you. I have my Lyman thermometer (for bullet casting) now in use as a thermometer for my gas grill. I'm sure one pistol primer wouldn't hurt anything if i had one on the upper rack while the grill was pre-heating.
There are three kinds of people in this world....them what's good at math and them what ain't.
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June 25th, 2009, 07:13 PM #3Junior Member
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Re: Heat + primer = ?????
I have no proof, but I seriously doubt it gets hot enough anywhere on this planet to set off a primer.
ETA I just wanted to clarify, I mean naturally not in an oven or something.Last edited by briang; June 25th, 2009 at 10:39 PM.
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June 25th, 2009, 08:39 PM #4
Re: Heat + primer = ?????
I doubt that ambient heat will set off a standard primer. If the ambient gets that hot, more than primers are going to be affected. I've spent considerable time in the middle east were temperatures (that I have seen) were as high as 55C (131F) and I was around gun toting military people and nothing cooked off.
Ron USAF Ret E-8 FFL01/SOT3 NRA Benefactor Member
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June 25th, 2009, 10:02 PM #5Banned
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Re: Heat + primer = ?????
Excuse me for being dumb here (and I can be damn stupid at times) but wouldn't you need some SERIOUS heat to do this? I mean like a torch or something like that?
Again if it's a stupid question I'm sorry but I just can't see ambient heat doing this.
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June 26th, 2009, 12:56 AM #6Grand Member
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Re: Heat + primer = ?????
ISTR an article in an old relaoding manual, (prob LYMAN, or "ABC's of Reloading" from 1966) that HPWhite Laboratories did a cook-off of some ammo, and I think they arrived at 400 degreed Farenheit as the cook-off point. They determined that a 30-06 in doing so would probably just push the bullet out of the case without rupture, and would not propel the bullet any distance over a few inches. But there would be a significant jet of hot gas from the case-mouth, and what powder was pushed out would ignite in the process.
All-in-all, not any sort of life-threatening issue. Still, no small matter, and I would not one going off in my pocket.
Flash
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June 26th, 2009, 01:10 AM #7Banned
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Re: Heat + primer = ?????
Primers are impact sensitive and, as far as I know, don't ignite. When ammo cooks off, the powder is what is burning.
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June 26th, 2009, 01:33 AM #8Grand Member
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Re: Heat + primer = ?????
Just put one on the Barbeque. It will take only one to disabuse you of that notion.
OR -- ".. OK, punk. Do you feel lucky?......." (apologies to Dirty Harry for that)
Place a small pistol primer on the burner of your electric stove, and place a skillet-lid over it, turn the burner on "high", and above all, do not do this while the wife is at home.
Flash
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June 26th, 2009, 02:00 AM #9Banned
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Re: Heat + primer = ?????
I don't have any primers lying around so I'll leave that to you. Heck, I don't have an electric stove either.
How hot does it have to get to go off?
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