Bullets: and the hot Arizona sun.
I have always felt kind of bad leaving ammo in the car. Here in Arizona the cars (sitting in a parking lot) can easily reach 200+ degrees inside during the summer.
At what point would this be a concern?
At what point would this be a concern?
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I'm no expert, but I live in Phoenix, and have never had any problems leaving ammo in my car for long periods of time in one of my pistols. The way I understand it is it takes and actual spark to ignite the powder, or insanely high temperatures, and no amount of car heat would be able to generate the heat necessary to ignite a round.
john kerry, out to prove he's got nothing to prove.0 -
If you could cook off a round at only 200 deg F, we'd all have heard about that already.
I wouldn't be too concerned about that.
I do wonder if prolonged exposure to that kind of temperature could slowly degrade the powder to the point where it could affect the accuracy or velocity of the rounds.0 -
I have suffered problems with lubed cast bullet handloads that were left in a hot car, i.e. squib loads from some or most of the powder made inert from the melted bullet lube, which was the old black Lyman stuff. 0 -
Don't sweat leaving your ammo in your car in the Arizona sun. I've done it for years, no problems. 
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Thanks. I feel much better now. 0 -
Just remember that as you drive around with ammo in your car/truck that eventually, your powder will crumble into dust and present a larger surface area to the ignition flame. That will cause problems with higher-than-normal pressures. I always swap out my ammo in my carry guns after 2 months (maybe I'm just paranoid).
"Qui non est hodie cras minus aptus erit" --OVID0 -
quote:Originally posted by gunnut505
Just remember that as you drive around with ammo in your car/truck that eventually, your powder will crumble into dust and present a larger surface area to the ignition flame.
What?0 -
I have never heard of cook-off's with ammo left in cars, but I do understand that powder is made "unstable" when exposed to durations of extreem heat. That said, I did inadvertently leave a box of 40S&W ammo in my truck tool box for 3 Texas summers and it didn't seem to affect it...as far as I could tell.
My humble 2.5-cents worth,
Rafter-S
"What is truth? No wonder jesting Pilate turned away. The truth, it has a thousand faces -- show only one of them, and the whole truth flies away! But how to show the whole? That is the question."
--Thomas Wolfe, "You Can't Go Home Again" (1934)0 -
Okay, I have a sollution to all this heat madness.. Take a .17, .22, .223, .243, .25-20, .260, .270, .280, .30-30, .30-06, .32, .303, need I say more? And put all the cartridges in a frying pan, (make sure you spray Pam for that non-stick goodness) crank the heat, and first one to shoot off, don't buy a box of that, and stick it in your truck in Arizona in the summer. [:D]
It's not war untill someone breaks out the .50 calibers.0 -
I lived in Arizona for over 50 years...never had a Round Cook Off...Never heard anyone say that They had one Cook Off.....
Captain Kirk, Tech Staff0
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