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

[Roger (K8RI) on TT]

 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  I'm way out of date on both and quit the 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 at contesting.com] On Behalf Of
>> Patrick Greenlee
>> Sent: Monday, March 30, 2015 6:57 AM
>> To: towertalk at 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 at 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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