Bench Accident

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DaveB

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Sep 3, 2008
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Shelby County
About 17 days ago.....
Every so often I take everything off my reload bench and since it is a formica finish I windex it clean. We have been doing tons of case prep and loading for 9, 223, 308, 6.5, and 280 so the need was there. On my lee turret press there are cavities on either side of the ram where decapped primers can collect or fall through and the way to empty these reservoirs is to vacuum them.

During our case prep we had primered some brass that needed to be sized and we just decapped them with no issues. While vacuuming the left side reservoir I stuck the nozzle into the reservoir and and ignited a primer which ignited at least 4 others. A lot happened really fast.

Big noise, lot of flame, intense pain on left hand. Dropped everything jumped back grabbed left with right as blood was moving pretty good. Eyeballed the bench and surrounds looking for smoke, nothing. Down to kitchen sink and inspection showed anvils from three primers embedded in my fingers. US Army Engineer Son grabbed his first aid kit and after advising me this was gonna hurt he removed the anvils. In meantime I bleeding pretty good and little finger is looking like seared steak so we are flowing water over it and to my surprise it cleaned up pretty easy. Pat dry, touch of antibacteria stuff, bandages. Lift my tshirt to look at two more anvil impacts and they are just scratches and although bleeding no worse than blackberry stickers. But, I felt something raising my tshirt and I lifterd it up and a primer shell fell out, burned through the tshirt and bruised me. There was also a strange lump close by and it was a primer shell that had burned through my T, penetrated my skin, and being so hot it cauterized the wound. Son grabs his forceps and extracts the shell. three drops of blood and that was it. Interestingly, this was a 210M.

Have to admit the noise really scared me for a moment, thought I had been shot. No idea how a primer ignited but my assumption is one of the live decapped ones must have been very close to ignition and pressure from the tip was all it needed. Over next ten days I laid down many layers of caulk to fill the reservoirs and now the decapped primers are dropping into a container of water.

I have healed up with no permanent damage although little finger is still sensitive.
 
So glad your ok Dave. I've always been fearful of something like that. As I reload in the house, any mishap would be seen by the wife as a reason to move me outside, so I'm very careful. But, I'll take your incident as a warning because whenever dealing with explosive elements anything can happen.

On a another note, I've always been fearful of deprimering, live primers. Something about pushing a pin into a live primer seemed like a bad idea, even though on the back side. Is it safe?

Are you saying the vacuum cleaner, set off the primer? Occasionally I drop a live one that gets vacuumed up so I guess I got lucky.
 
The vaccum hose end has a beveled tip and that part is thin enough to fit into the reservoir. I guess I put too much pressure.

I have been vacuuming live primers for ever-30 years. I have had one live primer go off being decapped due to dumb on my part.

Had to decap 10 mistakes last week. Windexed the inside of that brass. I like to think I learn from my mistakes.
 
Thanks for sharing that information Dave! Very glad you're none the worse for wear, notwithstanding the sensitive pinky!
 
it goes to show one thing

complacency will get you ( i am guility as well)

mr bigs fire ought to scare the crap out of you. it did me

hell i was spray painting and had it spontaneously combust burned my arm sent me to the er with some dirty undies.

glad you are ok
 
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I'm sorry to hear about that, Dave. Thankfully there was not a major injury sustained.

Keep in mind that primers can only be made permanently inert by oil. Water will not do it
 
I use a Lee turret and put foam ear plugs in the base holes with some blue painters tape, primers drop into a coffee can. Glad you didn't get killed.
 
WOW! This is the first time I've ever read of the physical damage done to the human body by detonating primers. You definitely got my attention! Any chance that static electricity from the vacuum set the primers off?
 
No chance of static. Once the bleeding and throbbing stopped (took 3 days..I take no-coagulate cardiac meds) I attempted to re-play the sequence of events. Vacuum on, tip inserted into hose, dig out right side of ram, switch hose from left to right hand, tip from right to left, start to dig out BOOM!! Same vacuum same procedure used every time for past 20-30 years and we decap a lot of live primers.


We have a Lee progressive press for loading 9's. You can load up 88 piece of brass and with every pull/push cycle you decap, then size, then primer from a 100 count reservoir which just happens to hold 180 primers and they are anvil-side up. There is a metal shield installed that keeps any primer ignition from getting you. Then powder then you place a bullet, then the round is kicked off the press into the catcher box. The primer process was always the most troublesome component. The centering step is less than exact and you can squish the primer easy. So easy, we used to place loaded rounds nose down in storage boxes to inspect all primers.

The primer reservoir has been removed as has the decap step. We decap on a standalone press, we prime using RCBS autoprime, then we feed the red monster. No chance of primer ignition. Adds bunch of time but after my experience with a maximum of 6 primers the thought of lighting off more than that at one time in the presence of about 6 ounces of H335 was too much for me.

And keep your bench clean as you possibly can.
 

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