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Sidelock
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Sidelock
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Salut Argo,
En 1898, pour bien différencier visuellement l'épreuve pyroxylée de l'épreuve poudre noire, le Banc d'épreuve de Saint-Etienne a créé deux nouveaux poinçons : le F couronné, épreuve simple des fusils finis, et le S couronné, épreuve supérieure des fusils finis.
Avant 1898, il n'y avait pas de poinçon pour l'épreuve à la poudre noire des fusils finis .
Last edited by fab500; 01/15/22 08:43 AM.
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Sidelock
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Sidelock
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Joined: Feb 2016
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Sidelock
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Sidelock
Joined: Feb 2016
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I was traveling for 10 weeks and just got home. Will translate this tomorrow. Very good material.
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In 1898, to visually separate the proof of pyroxylite powders from black powder proof, the Saint-Etienne proofhouse created two new stamps: the "crowned F" simple test for finished rifles, and the "crowned S" superior test for finished guns.
Prior to 1898, there was no stamp for black powder proofing finished rifles.
Last edited by Argo44; 01/16/22 02:32 PM.
Baluch are not Brahui, Brahui are Baluch
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Sidelock
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Sidelock
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first photographed page:
The Pyroxylite powders comprised 5 types differentiated by the color, the odor, and the pressures they created. The types are: -- Type J (2) -- Type S (3) -- Type M (4) -- Type R (5) -- Type T (1)
Pyroxylite J Powder:
Of all the types of pyroxylite powder, Type J is the closest of the bunch to black powder per the reports on its pressure regularity. It can therforee be used without any inconvenience in moderate charges in all the central fire percussion guns of good make which have been regularly proofed.
J powder at a medium distance gives a very good grouping for ball, and is very recommendable per this report. On the other hand it produces more smoke and recoil than the other powders, type M,R,T and S, and leaves on the walls of the barrels a greenish residue which can rust the metal if one doesn't take the precaution of rigorously cleaning the gun after hunting.
J powder is yellowish color, its grains are irregular and it emits a pronounced oder of ether.
J powder includes three numbers: -- J1 for use in 12 bore guns -- J2 for use with ball -- J3 for use in guns 16, 20 and 24 bore
J powder costs 2.85 francs per 100 grams and is loaded per the following chart:
-- Caliber 12: 3.5 to 3.8 grams using 36 grams of lead -- Caliber 16: 2.5 to 2.8 grams using 30 grams of lead -- Caliber 20: 2 grams to 2.2 grams using 26 grams of lead
Last edited by Argo44; 01/18/22 10:50 PM.
Baluch are not Brahui, Brahui are Baluch
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Joined: Feb 2016
Posts: 3,176 Likes: 335
Sidelock
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Sidelock
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2nd photographed page:
Table of comparative smoke generation by French hunting powders. Photographed at 1/50th of a second, 1/4 of a second after discharge by the electronic camera of Count H. Perpigna.
PHOTO 1: Smoke released by Black Powder PHOTO 2: Smoke released by Pyroxylite J PHOTO 3: Smoke released by Pyroxylite M PHOTO 4: Smoke released by Pyroxylite R PHOTO 5: Smoke released by Pyroxylite S PHOTO 6: Smoke released by Pyroxylite T
Baluch are not Brahui, Brahui are Baluch
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Joined: Feb 2016
Posts: 3,176 Likes: 335
Sidelock
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Sidelock
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3rd photographed page:
PYROXYLITE POWDER proofed in finished guns:
At our initiative, the special Proof House for finished guns organized some 4 years ago added two new proofs: -- one for guns proofed with Pyroxylite S; and the other for guns proofed for Pyroxylite J. And finally to give complete satisfaction to everybody, proofs for Powder M and R have been working since May 1898 and Proofs for powder T since 1899.
Table for proof charges for Pyroxylite powder for finished guns. . . . . . . . . . . . . . . . . . | CHART 1 (self evident)| | . . . . . . . . . . . . . . . |
Note: Each gun is accompanied by an official bulletin from the Proof House of Saint-Etienne, indicating the powder charges and lead weights used for the proof, the length of the chambers and the weight and length of the barrels, It is well known that the delivery of guns with the proof marks of finished arms protects us from civil liability.
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IMPORTANT OBSERVATION: Charges used by the Proof House are extraordinary and must not in any case be used in guns not adopted for them and for use in hunting weapons. The cartridges for Pyroxylite powder must not be loaded with heavier charges than those indicated on the box sold by the State and which are the following:
Table of normal charges of Pyroxylite powder that the hunter must never exceed: . . . . . . . . . . . . . . . . . | CHART 2 (self evident)| | . . . . . . . . . . . . . . . |
Last edited by Argo44; 01/18/22 10:48 PM.
Baluch are not Brahui, Brahui are Baluch
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Joined: Apr 2018
Posts: 336 Likes: 77
Sidelock
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Sidelock
Joined: Apr 2018
Posts: 336 Likes: 77 |
our history detectives are hard at work....many thanks to fab500 and argo...
best regards, tom
"it's a poor sort of memory that only works backwards." lewis carroll, Alice in Wonderland
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