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Re: [TowerTalk] [Bulk] Re: Grounding/Bonding Lessons Learned

To: towertalk@contesting.com
Subject: Re: [TowerTalk] [Bulk] Re: Grounding/Bonding Lessons Learned
From: "Roger (K8RI) on TT" <K8RI-on-TowerTalk@tm.net>
Date: Mon, 30 Mar 2015 22:03:09 -0400
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
From a corrosive standpoint, depending on the metal, the potassium nitrate is far more corrosive than sulfur.

Pyrodex is a "progressive" burning powder similar to that used in modern firearms. The higher the pressure the faster it burns. It also a lot cleaner than real black powder. It was just making an appearance when I was in the business, so it was a long time ago and not a lot of experience. Ignite a keg of modern powder and it will pop the cap off If you ever see a cardboard container, even a 1# can of real black powder, it makes a lot of noise (check the internet)

I had an FFL in the 70's and they'd come around once or twice a year to check the books, but the last few years I was in business I never saw them. I didn't keep enough powder on hand to require a magazine. They liked my record keeping and out of something like 4 or 5 visits never had a complaint.

Back in the 70's I sold and serviced ham gear and firearms in addition to having a full time day job. I'm way out of date on both and quit the day job (Industrial instrumentation) for college at age 47. Then got a job I really enjoyed.

73

Roger (K8RI)



On 3/30/2015 4:43 PM, Grant Saviers wrote:
A word of caution - take the can label literally, since BP sold in the USA is legal to possess ONLY for use in BP firearms. Any other use requires an ATF Explosives User Permit, and you don't want to go there, with required regular inspections of your record keeping and a federally approved storage magazine. I believe Pyrodex (no sulfur to corrode the firearm) is subject to the same regulations.

see the ATF open letter

https://www.atf.gov/sites/default/files/assets/Explosives/Industry/open-letter-black-powder.pdf

Grant KZ1W

On 3/30/2015 7:52 AM, Keith Dutson wrote:
Can says black powder for black powder firearms., imported from Brazil to Arlington, Texas. I could find no reference to Pyrodex. 4f is used in the flash pan, not the muzzle. I am sure it is the real thing based on instant
ignition and burn time.

73, Keith NM5G

-----Original Message-----
From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of
Patrick Greenlee
Sent: Monday, March 30, 2015 6:57 AM
To: towertalk@contesting.com
Subject: Re: [TowerTalk] Grounding/Bonding Lessons Learned

Cool, clever substitute. Pyrodex or the real thing? I still have part of a
one pound can of real 4F.

On 3/29/2015 8:37 PM, Keith Dutson wrote:

Patrick   NJ5G
Thanks for the great tip.  I will be doing 12 this summer, and just
happen to have a pound of Elephant FFFFg.

73, Keith NM5G

-----Original Message-----
From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of
RMorris
Sent: Sunday, March 29, 2015 12:17 PM
Cc: Towertalk Reflector
Subject: Re: [TowerTalk] Grounding/Bonding Lessons Learned


On Mar 29, 2015, at 10:09 AM, Mike Fahmie via TowerTalk wrote:

I had a similar problem igniting a Cadweld that had lost its ignition
powder.

Needing to do 99, on a damp day, a little 2F black powder from the
flintlock shooting kit got them to work every time.
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--

73

Roger (K8RI)


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