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Alaskan and ammo in a hot car

This is a discussion on Alaskan and ammo in a hot car within the Ruger Double Action forums, part of the Pistol & Revolver Forum category; Will it hurt anything to let the gun and ammo sit in a hot car all day through the Summer?...


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Old May 17th, 2017, 07:32 AM   #1
 
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Alaskan and ammo in a hot car

Will it hurt anything to let the gun and ammo sit in a hot car all day through the Summer?



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Old May 17th, 2017, 08:32 AM   #2
 
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Originally Posted by bcc454 View Post
Will it hurt anything to let the gun and ammo sit in a hot car all day through the Summer?
If you've ever walked thru a small country town high school parking lot on a hot day. And looked in the windows of over half of the rigs there​. You'll think NOT. All those kids have boxes of 22 shells sitting on the dash. And many have a rifle also.
Some will have a lotto of sorts seeing who can get the most ground squirrels a week.

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Old May 17th, 2017, 08:36 AM   #3
 
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Nope, no harm will be done.
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Old May 17th, 2017, 08:37 AM   #4
 
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Good. Thx
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Old May 17th, 2017, 08:40 AM   #5
 
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But you'll probably want to park in the shade whenever you can, if only for the sake of your hind-end!
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Old May 17th, 2017, 08:52 AM   #6
 
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Ammo doesn't store well in heat/humidity but as to safety should not be an issue. A cracked window would be beneficial along with parking in the shade. Some info.


Lead melts at 621 F
Nitrocellulose ignites at around 320-338 F
Gunpowder ignites at 801–867 F.

A car/truck with windows closed can reach 212 degrees so as for safety nothing will go off accidentally.
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Old May 17th, 2017, 09:35 AM   #7
 
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Quote:
Originally Posted by MartyMM View Post
Ammo doesn't store well in heat/humidity but as to safety should not be an issue. A cracked window would be beneficial along with parking in the shade. Some info.


Lead melts at 621 F
Nitrocellulose ignites at around 320-338 F
Gunpowder ignites at 801867 F.

A car/truck with windows closed can reach 212 degrees so as for safety nothing will go off accidentally.
Do you have a source for that? At 212 water boils, it is hard to imagine a car being that hot inside.
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Old May 17th, 2017, 09:50 AM   #8
 
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In the hotter climates. They have cook books with lots of recipe's for cooking inside your car. Some are for the trunk others the dash or right on the seat.
Prepare your food. Goto work, come lunch time or time to go home your food is done

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Old May 17th, 2017, 10:10 AM   #9
 
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Did find source for info:
Ammo In The Car Under Summer Heat: How Stable Is It? ? Concealed Nation
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Old May 17th, 2017, 10:15 AM   #10
 
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Yes it should be fine, but accuracy may be affected.

I did some "non scientific" testing when I noticed some of my long range guns loosing accuracy out past 300yds on hot days at the farm.

The next time I went out I placed half in a cooler with an ice pack and the other half was left out, the cooler ammo shot much better. This seemed to be the case for multiple rifles in multiple calibers. I don't know this for a fact but I read or heard it said that hot ammo may have a higher pressure when shot.

I know my issue has More to do with my choice of powder combined with the heat. I don't have clue how it would affect factory ammo, I haven't bought any for at least 25 years.



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Old May 17th, 2017, 01:40 PM   #11
 
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If I have to leave my pistol in the truck I put it under an old saddle blanket. Never had a problem. I have left a rifle in the same way for extended period. Again no problem.
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Old May 17th, 2017, 02:01 PM   #12
 
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I agree with highhawk the summers down here are very hot I just roll my truck rifle up in a good quality saddle blanket never had an issue. I make a habit of never storing ammo on the dash for no other reason than people never want what they cant see. Ammo is usually under the seat in a small hard case never had a problem.
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Old May 17th, 2017, 05:42 PM   #13
 
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PV = nRT, the ideal gas law. Pressure is proportional to temperature. So, in the heat, you may have higher pressure, this higher velocity and possible different point of impact.


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Old May 18th, 2017, 06:43 AM   #14
 
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I have left my handguns in the glove compartment of a hot car and never has a problem.
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Old May 18th, 2017, 11:20 AM   #15
 
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Think about our troops deployed in the Middle East. Their ammo is sitting in the Heat much higher than what we can experience. It's not a problem.


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