cathouse01
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You might want to reconsider keeping you ammo and propellants in a fireproof filing cabinet. First, those cabinets really are designed to protect paper, which has an autoignition temperature of 218-246°C, where as smokeless powder’s autoignition temperature is considerably lower at 160°C – 180°C. Second, one way they help keep the paper inside them from burning is to create an airtight seal when the gasket around the drawers heats up and expands. Since smokeless powder (and black power) are self-oxidizing, cutting off their air supply does no good and, since it allows the pressure inside to increase, will actually increase the rate of burning until you have an actual explosion. You generally want to keep ammo and powder in something that is relatively flimsy and that allows for the escape of the combustion gases to avoid accelerating the combustion to the explosive level it obtains in a cartridge.
I use metal garage cabinets that have high shelf weight ratings (150 lbs. per shelf) but have pretty flimsy doors and have a hole in the back at each shelf to allow you to run electrical cords into the cabinet to recharge batteries and such but make great pressure relief valves for ammo.
Edited to correct autoignition temperature of paper.
I use metal garage cabinets that have high shelf weight ratings (150 lbs. per shelf) but have pretty flimsy doors and have a hole in the back at each shelf to allow you to run electrical cords into the cabinet to recharge batteries and such but make great pressure relief valves for ammo.
Edited to correct autoignition temperature of paper.
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