| 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  I'm way out of date on both and quit the 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.
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
 
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
 
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
 
--
73
Roger (K8RI)
---
This email has been checked for viruses by Avast antivirus software.
http://www.avast.com
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
 |