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Explosion while Annealing

Spyder1958

Anyone ever have a spent primer explod?
While annealing Alpha 6BRA today I had one explode blowing out the primer. This has happened twice. 1st time I chalked it up to me mixing in a prepped case somehow. Today I removed the fired brass from case. Only one’s in the. Case Were fired yesterday. I inspected, cleaned and marked the case for the number of firings. Headed out to shop and started annealing when one popped off. Federal gold medal. Don’t understand how it could fire twice or how I could have mixed a new one.
 
There’s no way.

In fact, I’ve seen a video demonstrating where it takes a lot of heat to make a NEW primer detonate.

How could this possibly happen?
 
Spyder1958 said:
Anyone ever have a spent primer explod?
While annealing Alpha 6BRA today I had one explode blowing out the primer. This has happened twice. 1st time I chalked it up to me mixing in a prepped case somehow. Today I removed the fired brass from case. Only one’s in the. Case Were fired yesterday. I inspected, cleaned and marked the case for the number of firings. Headed out to shop and started annealing when one popped off. Federal gold medal. Don’t understand how it could fire twice or how I could have mixed a new one.
Click to expand...
Try decapping your brass before annealing, you'll never have another surprise .
 
Spyder1958 said:
Anyone ever have a spent primer explod?
While annealing Alpha 6BRA today I had one explode blowing out the primer. This has happened twice. 1st time I chalked it up to me mixing in a prepped case somehow. Today I removed the fired brass from case. Only one’s in the. Case Were fired yesterday. I inspected, cleaned and marked the case for the number of firings. Headed out to shop and started annealing when one popped off. Federal gold medal. Don’t understand how it could fire twice or how I could have mixed a new one.
Click to expand...
Is there a FP indent in the primer?
 
Had that happen with some "once fired" brass I bought. Ran them thru the tumbler with water/lemishine/dawn/carwash mix and dried them, then off to the annealer. I was trimming brass over at the vise, about 12 ft away when a loudish "BANG"got my attention. Went over and the spent case was on the floor, primer gone ,.and the metal bread pan I use to catch the annealed brass had a large primer sized hole almost all the way thru the end. Primer laying in the bottom of the pan. Guess the live primer went off just as it dropped onto the pan
 
Clancy said:
But REALLY…. Who reloads and welds in the same room?


You carve awesome stocks by the way.
Click to expand...
Thanks on the stocks. Thanks for the laugh. I don't reload in my shop. I bought a truck load of presses and reloading equipment and various other items from a friends estate. I was going thru the stuff. I bought 4 dillion 1050's and some primers were in the tube. I dumped them out and they ended up in the water tray around my welding table, which use to be a table that had a wet surface grinder on it. Hence the water tray around the perimeter. Then later some sparks from a welding project set off some of the primers.
 
Webster said:
Is there a FP indent in the primer?
Click to expand...
All brass I fired yesterday and recorded every shot fps. As I was doing a powder charge test. And examining each primer after fired looking for pressure sign.
So with that said yes every one had a FP indent
How a unfire primed brass got in the mix is the mystery
 
you had a live primer you missed. When I anneal with my giraud, I set it up outside pointing the case necks in a safe direction, load it up and let it run while I go do something else. When I dont hear the rhythmical dropping of brass, I go reload it. I do this because I once missed a primed case and when it popped, it blew the flame out and launched brass everywhere, could have hurt someone.
 
Never had a primer go off, but did have some leftover powder in some cases that were pulls. Guess when I pulled the bullet and dumped the powder, some residual stuff hung up inside. And yes they were deprimed. Sure made a nice flash for a second. Not a mistake I will make twice.
 
That's like putting a LIVE ROUND in the chamber while INSIDE THE HOUSE!!! Worked with a guy that did that with his 06 hunting rifle. Had to buy his wife a new fridge. :eek: :eek: I thought he was smarter than that, but I guess not. :oops:
I THINK he learned something that day.;)
The ONLY time a live round EVER gets in "any of my rigs" is at the range or out the back door to pop one for operation and checking headspace, etc.
Only takes once to go BANG and be a problem.
 
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