Static electricity and reloading

View previous topic View next topic Go down

Static electricity and reloading

Post by Sa-tevp on Wed Jan 08, 2014 9:03 pm

In the near future I expect to set up a bench in my workshop to reload on. Are there any guidelines for grounding everything to dissipate static electricity? Is this a concern when reloading and handling components?

Between working on electronics, handling solvents/chemicals and climbing into fuel tanks it's on my mind a lot, which is why I ask.

Sa-tevp

Posts : 250
Join date : 2013-07-20
Age : 53
Location : Georgia

Back to top Go down

Re: Static electricity and reloading

Post by james r chapman on Wed Jan 08, 2014 9:14 pm

I believe its generally been
Debunked.

Controlling your humidity is the answer.

james r chapman

Posts : 1596
Join date : 2012-01-31
Age : 67
Location : HELL, Michigan

Back to top Go down

Re: Static electricity and reloading

Post by Guest on Wed Jan 08, 2014 9:25 pm

The only static issue I have run into is powder bridging, so not all the power gets in the case.  I solved that by wiping inside of powder dispenser with an anti-static dryer cloth like you put in cloths dryer.  No problems.

Chip

Guest
Guest


Back to top Go down

Re: Static electricity and reloading

Post by Rob Kovach on Wed Jan 08, 2014 9:35 pm

Unless you have unusually dry conditions in the room with your reloading bench, carpet in the room, and you are zapping the crap out of your pets and the doorknob every time you touch it, then you are going to be just fine.

Rob Kovach
Admin

Posts : 2552
Join date : 2011-06-14
Age : 43
Location : Brooklyn, WI

Back to top Go down

Re: Static electricity and reloading

Post by Brian Mason on Thu Jan 09, 2014 8:10 pm

I have never had a problem with electrostatic discharge with reloading, but the general rule regarding raw primary explosives (like the lead styphnate in primers), or ESD-sensitive secondary explosives, is to keep the relative humidity above 40%. Modern laboratories have "misters" in the ceiling to drive up humidity.

Less modern laboratories have milk jugs of water to empty on the floor.

Brian Mason

Posts : 23
Join date : 2011-06-12
Location : Maryland

Back to top Go down

Re: Static electricity and reloading

Post by noylj on Wed Jan 15, 2014 12:58 pm

If you want to ground your press, go ahead. Since presses do not come with ground wires and there has never been a need for such, it must not be big problem.
Most areas probably only have a problem during the winter, in which case, I would assume, a humidifier would be a good thing to have.

noylj

Posts : 225
Join date : 2012-03-09
Age : 67
Location : SW USA

Back to top Go down

Re: Static electricity and reloading

Post by Ed Hall on Wed Jan 15, 2014 3:39 pm

I hate to be the bearer of such news, but I personally know of a shooter who had to have his fingers reattached due to static and primers.  This is his story as told through me, so my memory may have changed the details slightly, but my version is this:

He was holding a Dillon primer pickup tube in one hand and, using a metal device (possibly a screwdriver), he tried to push the one primer that is always stuck (by design) in the plastic end into the tube to free them all up.  He saw the static discharge between the primer and the pushing device.  The whole tube went off!

I must confess to doing this very thing with my tubes, but I ground the device (in my case an Allen wrench) against the outside of the tube first, prior to contacting the primer.

The powder hopper bridging can be a nuisance, but the primers can be great trouble.  As for grounding the entire system, I have seen it done, but don't think it would have changed anything in the above incident.  Being aware of the volatility of the primers is important. Of all the shooters I know that have had things "go off" unintentionally while reloading, the primers were the central theme - I know more than one shooter whose primer tube went off in their press - Always keep the secondary tube in place!

I have personally seen the scars and the holes in ceiling tiles.  Again, keep the secondary tube in place and handle the primers with awareness of their potential.

Ed Hall

Posts : 363
Join date : 2012-09-11
Location : Adirondack Mountains

http://www.starreloaders.com/edhall/

Back to top Go down

Re: Static electricity and reloading

Post by igolfat8 on Fri Jan 17, 2014 11:30 pm

I was recently told by a safety manager of a large ammunition OEM that static discharge initiating primers is a myth. They have used cattle prods to test this. The static will discharge from the case to the anvil without initiation. Impact, friction and heat are far more likely to initiate a primer with static being the least likely.

igolfat8

Posts : 132
Join date : 2013-04-06

Back to top Go down

Re: Static electricity and reloading

Post by james r chapman on Sat Jan 18, 2014 7:19 am

yep.

james r chapman

Posts : 1596
Join date : 2012-01-31
Age : 67
Location : HELL, Michigan

Back to top Go down

Re: Static electricity and reloading

Post by Ed Hall on Sun Jan 19, 2014 3:31 pm

igolfat8 wrote:I was recently told by a safety manager of a large ammunition OEM that static discharge initiating primers is a myth. They have used cattle prods to test this. The static will discharge from the case to the anvil without initiation. Impact, friction and heat are far more likely to initiate a primer with static being the least likely.
I'll pass that on to my friend next time I see him...

Actually, he hasn't been to any of the matches I've been attending in the last couple years...

The last time I saw him, he told me he has been giving safety briefings on his incident.  I'll let him know he doesn't need to...

Ed Hall

Posts : 363
Join date : 2012-09-11
Location : Adirondack Mountains

http://www.starreloaders.com/edhall/

Back to top Go down

Re: Static electricity and reloading

Post by 243winxb on Mon Jan 20, 2014 11:03 am

Clean the primer tubes. Primer dust may build up in the tubes.    Impact, friction and heat are far more likely to  set off  a primer.  Seen 2 online. One forced the primer feed. The other said to be from static electricity. 

243winxb

Posts : 126
Join date : 2013-12-02
Age : 72
Location : USA

Back to top Go down

Re: Static electricity and reloading

Post by Schaumannk on Mon Jan 20, 2014 11:05 pm

Ed Hall wrote:
igolfat8 wrote:I was recently told by a safety manager of a large ammunition OEM that static discharge initiating primers is a myth. They have used cattle prods to test this. The static will discharge from the case to the anvil without initiation. Impact, friction and heat are far more likely to initiate a primer with static being the least likely.
I'll pass that on to my friend next time I see him...

Actually, he hasn't been to any of the matches I've been attending in the last couple years...

The last time I saw him, he told me he has been giving safety briefings on his incident.  I'll let him know he doesn't need to...
I am absolutely sure, this is what he told you, but when I consider that he was poking at a live primer with a metal screwdriver, I am not totally convinced that the "arc" that he experienced wasn't the primer ignition itself.  They can explode when they hit the metal insides of a vacuum cleaner.   I have an acquaintance that did this.

Schaumannk

Posts : 251
Join date : 2011-06-11
Location : Cheyenne, WY

Back to top Go down

Re: Static electricity and reloading

Post by Ed Hall on Tue Jan 21, 2014 10:47 am

Schaumannk wrote:I am absolutely sure, this is what he told you, but when I consider that he was poking at a live primer with a metal screwdriver, I am not totally convinced that the "arc" that he experienced wasn't the primer ignition itself.  They can explode when they hit the metal insides of a vacuum cleaner.   I have an acquaintance that did this.
Thanks, I'll discuss this all with him if/when I see him next.

Ed Hall

Posts : 363
Join date : 2012-09-11
Location : Adirondack Mountains

http://www.starreloaders.com/edhall/

Back to top Go down

Re: Static electricity and reloading

Post by Sponsored content Today at 4:22 pm


Sponsored content


Back to top Go down

View previous topic View next topic Back to top


 
Permissions in this forum:
You cannot reply to topics in this forum