What Temperature Will Set Off a Primer?

[ElDub1950]

Just put a bunch of brass in the oven to dry. Certainly a 150 degree over is fine, but it made me wonder about what temp it takes to set off a primer.

If I got careless, I can see accidentally dropping a primed brass in my tub of dirty brass and having it end up in the oven after cleaning.

Checked my primer box and surprised it doesn't even give a max storage temp.

Just curious if anyone ever baked a primer to see at what temp it would fire. My apt management probably wouldn't like it if they found I was testing explosives in their oven, so I can't try it myself

[bohoki]

probably around 400 f

[ireload]

try You Tube. I watched a video of a guy doing just that...seeing at what temperature a primer would go off. He used a griddle and a propane stove.

[meaty-btz]

about 475F

[pdq_wizzard]

Just put a bunch of brass in the oven to dry. Certainly a 150 degree over is fine, but it made me wonder about what temp it takes to set off a primer.

If I got careless, I can see accidentally dropping a primed brass in my tub of dirty brass and having it end up in the oven after cleaning.

Checked my primer box and surprised it doesn't even give a max storage temp.

Just curious if anyone ever baked a primer to see at what temp it would fire. My apt management probably wouldn't like it if they found I was testing explosives in their oven, so I can't try it myself

its probably because you would die at the temperature it would take to set off a primer.

I've seen people do mag dumps on AR'S and I'm sure that bolt is over 400 deg.

[LONGRANGER777]

[FresnoRob]

I have to agree with the above, I read a thread where someone cooked ammo to see if it would go off. ( They did this in a safe controlled environment not some home oven ) At about 327 degrees the lead melted and the ammo had still not exploded.

[h.charlie]

Didn't they do something like this on myth busters?

[chknlyps2]

In the Winchester leaflet that comes in the cases of primers the only temp listed is above 140 deg.... but it is listed under the heading of " Conditions which may cause misfires or poor ignition" In other areas of the leaflet it just says to keep away from heat, flame etc.

[stilly]

about 475F

OP:
Start at 10% below that temp and work your way up... Bronco has a three step rule he tries...

Come on now, it's a reloading forum!

[thenodnarb]

I have to agree with the above, I read a thread where someone cooked ammo to see if it would go off. ( They did this in a safe controlled environment not some home oven ) At about 327 degrees the lead melted and the ammo had still not exploded.

led melts at 650 F and up depending on alloy.

[mjmagee67]

What does the MSDS for lead azide say?

I just looked the auto ignition temp is 330 C. Pretty high.

[thenodnarb]

What does the MSDS for lead azide say?

I just looked the auto ignition temp is 330 C. Pretty high.

I thought modern primers were made from DDNP. Lead Azide are the older corrosive primers I believe.
MSDS for CCI primers says 200 celcius or nearly 400 F

[mjmagee67]

I thought modern primers were made from DDNP. Lead Azide are the older corrosive primers I believe.
MSDS for CCI primers says 200 celcius or nearly 400 F

I thought Mercury primers were the corrosive ones. Lead azide was the new material and now they are going to some non-toxic thing. But not all primers are there yet! So we can assume it's somewhere between 200 and 330 C which is damn hot, not a temp one is likely to see on an average day.

[Germz]

hot. hot is the temperature that will set of a primer.