I am pretty sure I know the answer to this but would really appreciate some more input.

I keep my BOB in the trunk of my black car. We have had weather in the mid 80's as of late. I keep about 100 rounds of .22 with my BOB. Should I have any concern about ammunition exploding at high temperatures? I am sure it is well over 120 degrees in the trunk.

Also I shoot a little trap. Any outstanding concerns about 12 gauge shells in a hot trunk?

Thanks

Cameron

For what it's worth...I've seen ammmo in varying calibers (5.56 all the way thru .50 and 40mm) sit in ammo cans, magazines, weapons, and in HMMWVs for hours on end in the sandbox with nary a cookoff.

In 1943 a B-24 liberator called “Lady Be Good” went down in the north Africa, in Libya. It was found in the 1960s by an oil company prospector. All the windows were still intact as most of the plane was. None of the ammo self detonated, in fact the people that found the plane test fired the 50 cal Browning’s and they all worked.


It gets very hot in Libya, inside a metal can. Your ammo will be fine in your trunk.

The .22 stuff, no worry. The 12 gauge, could possibly be effected by the heat, but probably not. Before I retired, I worked in the central valley of CA, where 100+ temps are the norm in summer. We left Remington 870's, with four rounds of 00 buck in the mags, in the vehicles all the time. That is, 'til we discovered that the heat, combined with the tension of the mag spring, was causing the rounds to become deformed, or "bent" a little bit, right above the brass. Some to the extent that they would not chamber. Time for a policy change. But I doubt that loose rounds, or rounds in a box, would be adversly effected...

.22 rimfire cartridges are prone to degradation over time compared to centerfire. Think white wine vs red.

Gentlemen,

Thank you so much. Very helpful!

Cameron

My dad and found an open tin of 22 lr ammo in my grandmas garage that was sitting for years (since the 1950s we think) I shot it in my Ruger 12-22, if cycled the action fine and seemed to shoot just as well as new ammo. For any situation ammo will ever see, it will work fine when shot at a later date. Being under water is the only thing I would worry about.

I wish I could remember my source but I read this quite a few years ago.
Ammo will degrade if exposed to heat over time. I don't konw exactly what happens when but the short version is
you loose speed, muzzle velocity.

The story on the “Lady be Good” B-24 came from a book I read about it when I was in high school. The ammo worked good 15 to 20 years after the crash., It’s got to be mighty hot in north Africa inside a metal plane…

PS they took parts off the Lady Be Good and put them on other planes, and they crashed. One time the only thing that washed ashore from a crash into the water was an arm rest from the Lady Be Good. Kinda spooky if you believe those things, I don’t, but I also would not want to fly in a plane with a part from it on the plane…

I think you will find most ' lost plane parts on other airplane' stories are apocryphal, with or without Ernie Borgnine playing a ghost smelling of Bay Rum. In WW2 a Blimp crashed ashore here in Southern California without it's crew.The best explanation ( after the usual UFO had their say later)is one crewman was leaning out to make an emergency repair, got in trouble and when his crewmate tried to help both fell to their death. I got to ride one of the Goodyear advertising blimps years ago. In fact, San Pedro even in the mid 1950s was still scene for the last blimp operations and much of the equipment went into Goodyear's fleet- including the gondola from that crashed blimp I was later to ride in.