Why not Pyrodex in a flintlock?

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BTW: The device for measuring the puissance of black powder is called an eprouvette. Some resemble Rube Goldberg devices.

black powder eprouvette - Bing images
So cool, this one I knew. The device is similar to mortar but contained as to propel a plug to a certain measurable height based on the energy of the powder! I think I haven’t seen or heard this word in over 35 years!
 
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BTW: The device for measuring the puissance of black powder is called an eprouvette. Some resemble Rube Goldberg devices.

black powder eprouvette - Bing images
Okie, I just loo at the pictures you posted, I guess it looks like a pistol with a wheel to measure the strength. For some reason I remembered been like a mortar, so I stand corrected.
 

dgracia

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Absolutely. Hot water dissolve it.
Of the BP substitutes that I have used with my cap and ball Pedersoli Kentucky Pistol (bought it in 1969), the "777" was the one I liked. Hot water works for all of them but you have to scrub a bit with the Pyrodex to get it clean and it fouls more than the 777. Pour a little water on the 777 and it will just about slough off. Hit it with Windex and it will slough off. I was also able to get the 777 to work every once in a while in my longrifle. It wasn't reliable by any stretch, so I only use real BP with my flintlocks. But surprisingly, occasionally that 777 would work. The Pyrodex...not a chance!
 
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saw an eprouvette on an episode of Storage Wars. little Texas gal found it. Experts told her it was worth nothing as no one would buy it.
Me, i was screaming at the boob tube " I'll buy it, I'll buy it!"
but then i am a gadgetaholic.
1642140464685.png
 

TFoley

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It is really like apples and oranges. Black Powder is an explosive with an ignition temperature of 350*. Pyrodex is Black Powder that has been treated with a coating that increases the ignition temperature to 740* thereby getting it classified as a propellant.

Granted, if you grind the Pyrodex, you will probably remove some of the coating so that some times it will ignite with a flint. However, it won't be reliable enough to be worth the effort.

Yup, and having read THAT tidbit of information, the rest of the folks here might just be able to figure out why Triple 7 got its name.......................
 

TFoley

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'Éprouvettes' come in many styles, from those that look like a pistol, but actually drive a graduated wheel around against a calibrated point, like the one shown in post #46 from Deerstalker, to those driving a piston either upwards or along a graduated track. The spiffiest of them all, to my mind, is one that actually blows a bullet-shaped load along a barrel, and looks like a proper gun with a slot in place of a barrel rib.
 

toot

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Yup, and having read THAT tidbit of information, the rest of the folks here might just be able to figure out why Triple 7 got its name.......................
how did it ger it's name? did I miss the memo?
 

toot

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French for 'power', as in 'Grande Puissance' = the original nomenclature for Browning-designed GP35 c*r*r*d*e-firing pistol of 1945.

Here is a non-illustrative picture -
I am 77+++and I also learned a new word. now to use it in a sentence!
 

Erwan

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It's a cheap way of increasing the " PUISSANCE" of the powder.

Attention avec PUISSANCE, c'est un mot qui a de nombreuses significations :
Be careful with PUISSANCE, it's a word with many meanings:

""Parvenir à la PUISSANCE se paie cher : la PUISSANCE abêtit. "
(Nietzsche)
Meaning : ""Achieving POWER is expensive: POWER is mind-numbing. ""

This pun is better when said in French... :(

😉
 

Gordoncourtney

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Attention avec PUISSANCE, c'est un mot qui a de nombreuses significations :
Be careful with PUISSANCE, it's a word with many meanings:

""Parvenir à la PUISSANCE se paie cher : la PUISSANCE abêtit. "
(Nietzsche)
Meaning : ""Achieving POWER is expensive: POWER is mind-numbing. ""

This pun is better when said in French... :(

😉
Ha ha. Nice to read your bit Erwan. A poet even. French a beautiful language Your borders are now open according to DFDS ferries be it with a £50 PCR tests. But like the uk I bet it’s wet and cold down to Beritz I read more on the forum are over 70 good luck to them all. , so much knowledge for the forums Great news me being 79 in March. I wish you well Messing around with my stone mill it’s running too fast splashing this black stuff around the room , pissing the wife off , I had a clear up and scraped up a pile on the paper. Of course I am only using charcoal not allowed to make the real black stuff in uk. Ha ha.
I wish you well across the channel and across the pond cold as it is I did sent 30 shots 50 shots to my 50 yard target board. Pcp pump up air guns are a bit pissy but they do the job in my long garden. I get ****** off skinning squirrels but tasty they definitely are
 

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Erwan

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Your borders are now open according to DFDS ferries be it with a £50 PCR tests. But like the uk I bet it’s wet and cold down to Beritz
Hi,
Yep, the border is open and Macron pissing the people, that's our new way of life... :D :D
'bout the temps, it's today dark gray and 1°C (~33F) for La Rochelle, maybe something like 7 or 8°C for Biarritz (~44 or 46°F)...

For powder the grinder must turn very slowly and have heavy wheels (stones are the best) :
the slower the grinding and mixing and the finer and more homogeneous the mixture, the better...
Maybe with a speed reduction on the wiper motor. I also believe that the Chinese from Ali Express sell very slow little motors: they sell everything for nothing, pretty good for testing.....

Thanks for the pictures. ;)

Have a nice evening.

Erwan.
 

Gordoncourtney

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Hi,
Yep, the border is open and Macron pissing the people, that's our new way of life... :D :D
'bout the temps, it's today dark gray and 1°C (~33F) for La Rochelle, maybe something like 7 or 8°C for Biarritz (~44 or 46°F)...

For powder the grinder must turn very slowly and have heavy wheels (stones are the best) :
the slower the grinding and mixing and the finer and more homogeneous the mixture, the better...
Maybe with a speed reduction on the wiper motor. I also believe that the Chinese from Ali Express sell very slow little motors: they sell everything for nothing, pretty good for testing.....

Thanks for the pictures. ;)

Have a nice evening.

Erwan.
Hello we were just looking at weather yes wet 8 degrees in Beritz. Our friend in Cahors complaint about bad weather over last two years , so wet, actually Anglars Juillac. Motorhomefun is the website for those rushing to the sun , it’s a bit naff. Tommy up in Maine USA on forum emails me , its sub zero snow an oh so cold . Not much hotter in Benidorm Spain. Canaries ok but priced with TUI gone up around £650 for 7 days too expensive for us usually £360. Go there most years if cheap deal .


those min motors are quite good as got them on my Rapido sat dish but they don’t last so I keep a spare like €8 each around 3 weeks from China I have a 25 rpm 12 v motor coming from China €14 should be here by 17 jan This one I am using is off a wire feed on a mig welder about 80 rpm far too fast but great fun , tried to slow it but no joy.? everywhere splattered with the black stuff, it’s a nice Victorian mini stone mill, we had a big one at out company big 5 ft dia stones , typical of a gunpowder wheel, terrifying to be near driven of gears teeth made of apple wood . I must make a stone tumbler nog paying £160 for one but I have made a tiny one for test mixtures

better stop or I will go on and on. Take care Joan and Gordon.
Ps french laws. What you cannot kill vermin with an air gun , some things are good in England
 

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