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Posted: 6/22/2009 2:12:50 PM EDT
| Will it damage ammo to store it in a car and have it be subjected to the varying extremes of heat and cold? |
I wouldn't keep too much ammo in your vehicle... Case in point; I had just picked up like 4k rounds and had not had the time to unload it. I had a guy run a stop sign and hit me. What a mess! And I was trying to get it picked up as quick as possible before the cops were wondering why I had a truck full of ammo. 
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Ammo stored in exteme heat is very bad. The temperature inside a vehicle during the summer is enough to cause the propellant to deteriorate and irreversibly increase it's burn rate.
Cold powder will not burn completely, dropping pressure and velocity and leaving unburnt prepellant in the chamber and bore. |
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Quoted:
Ammo stored in exteme heat is very bad. The temperature inside a vehicle during the summer is enough to cause the propellant to deteriorate and irreversibly increase it's burn rate. Cold powder will not burn completely, dropping pressure and velocity and leaving unburnt prepellant in the chamber and bore. Um, I might know everything about powder/chemestry, but I was always under the impression that if the powder did deterotate, it wouldn't cause the burn rate to go up byt rather the round would be weaker? |
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Thanks for the info guys. I wouldn't keep too much in there, and it wouldn't be for more than a couple months without being shot and replaced.
Quoted:
I wouldn't keep too much ammo in your vehicle... Case in point; I had just picked up like 4k rounds and had not had the time to unload it. I had a guy run a stop sign and hit me. What a mess! And I was trying to get it picked up as quick as possible before the cops were wondering why I had a truck full of ammo. The mental image I have of that is hilarious!
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Colt100 is correct, the pressure can rise substantially as storage temperature increases. Even after the ammunition has returned to ambient temperature.
Performance drops as temperature falls, but propellant stored in cold but not freezing conditions would not be ruined, but will perform less than optimal at those temperatures. |
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Quoted:
I wouldn't keep too much ammo in your vehicle... Case in point; I had just picked up like 4k rounds and had not had the time to unload it. I had a guy run a stop sign and hit me. What a mess! And I was trying to get it picked up as quick as possible before the cops were wondering why I had a truck full of ammo. I bet the guy that hit you was thinking he hit the wrong mother fucker when he saw thousands of rounds spill out of your car 
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