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I leave my Glock 17 holstered & in my trunk while at work. My concern is will the Texas heat set off a round with one one the tube? I use Hornady Critical Duty Ammo.
Thanks in Advance!

Pecos wrote:I leave my Glock 17 holstered & in my trunk while at work. My concern is will the Texas heat set off a round with one one the tube? I use Critical Duty Ammo.
Thanks in Advance!

Not gonna get hot enough to do anything. You could probably leave it under the windshield and would still not get hot enough to cook off a round, but would be too hot to handle when you put it back on.

Thanks Keith: Thats what GOOGLE said too. But had to check with "My People" Here.

The Critical Duty ammo spoils above 80 degrees. It is so dangerous, I'll take it off your hands so you don't have to handle it.

That stuff cost me $29 for a 25 round box!!!!
IT doesnt have bullet set back problem it's awesome!!!!
If the center core doesnt melt Ill be happy. Im sure they heat tested it.

I paid a few dollars less at Academy. I have it in my Glock right now and like it so far.

Ill let you know if the center core melts.
The Academys in San Antonio are always out, they keep it up front now. Ill check this weekend again.
The guns are a good price too.
It's only in the low 90's here today but we have been up to 108 last week.

You could leave it out in the sun in death valley on a metal tailgate and it would never go off! I believe you need at least 300+f to cook off. Maybe some one knows the exact temp but if it is hot enough to cook off outside all human life would be dead. Unless it is in a fire or oven your fine.

This might make a good youtube video, place a cartridge in a pan, gradually raise the temp and see what it does take to set it off. I am surprised that we don't have more cases of self ignition in Texas in the summer. Unless it is in that 300 degree range.

I forget what temp most propellant ignites but it cant be done from natural outside heat. Only way it could ignite in your car is maybe and I say a big maybe is leave a loaded gun on the intake manifold of your car while its running and then i still don't think it would get hot enough.

Pecos wrote:Ill let you know if the center core melts.
The Academys in San Antonio are always out, they keep it up front now. Ill check this weekend again.
The guns are a good price too.
It's only in the low 90's here today but we have been up to 108 last week.

Not anymore. I've gone everyday last week and they've had everything as late as 4pm! I picked up a box of .9mm CD

HORNADY CD doesn't have bullet set-back? I have pulled a few rounds that seem to me have set back.

CC Italian wrote:You could leave it out in the sun in death valley on a metal tailgate and it would never go off! I believe you need at least 300+f to cook off. Maybe some one knows the exact temp but if it is hot enough to cook off outside all human life would be dead. Unless it is in a fire or oven your fine.

Even then, the plastic of the pistol will probably melt long before any ammunition cooks off. I know of one dude that, for some strange and inexplicable reason, decided the oven was a good place to hide a loaded polymer-framed pistol. One day, his mother-in-law was over, decided to bake something, and set the oven to pre-heat without opening it to check... I got to look over the pistol some time afterwards.

The magazine floorplate fused to the grip of the pistol, the magazine release melted, and there was as fine a set of grill-marks melted into one side of the gun. I think the trigger even fused. The whole frame kinda "slumped" a bit too. Not one round discharged, not even the one in the chamber. They wound up unloading the gun by hand-cycling the slide until the magazine was empty.

While this gun wasn't a Glock, it was polymer-framed, and of similar construction. I came to the conclusion, albeit based off this one anecdote, that modern ammo is very difficult to "cook off," absent certain specific circumstances (extended firing, resulting in a super-hot chamber, throwing the ammo in a fire, etc.).

I recently watched a Mythbusters episode where they put ammo in an oven. They tested several different calibers from .22 LR to .50 BMG. As I recall, they all went off somewhere just over 350 degrees.

BTW, they only had enough power to get through the oven door/walls if they were in a firearm.

jayinsat wrote:Not anymore. I've gone everyday last week and they've had everything as late as 4pm! I picked up a box of .9mm CD

HORNADY CD doesn't have bullet set-back? I have pulled a few rounds that seem to me have set back.

Wish I could find it as readily in Houston. I've lucked into a box or two when dropping in but it's been few and far between. I have been finding it online though. Wish they sold Critical Duty in 50 round boxes.

I don't know about Critical Defense, but Critical Duty has a pretty heavy duty canneleur in it that seems to do a good job of preventing setback.

rotor wrote:This might make a good youtube video, place a cartridge in a pan, gradually raise the temp and see what it does take to set it off. I am surprised that we don't have more cases of self ignition in Texas in the summer. Unless it is in that 300 degree range.

tape a round to the exhaust manifold and you might get it to cook off. Some aftermarket headers will glow bright red at night.