The M1915 weighed 630 grams with 60 grams of
cheddite, a type of explosive developed in France in 1897.
Cleaning up the bore and chamber to insure any abrasive from the stones was washed out, I made some test ammunition after ordering
Cheddite 26 gauge plastic shotgun hulls I found on the Internet.
The barrel consists of a reinforced firing chamber on the firing end of the shotgun, made to fit 12-gauge
Cheddite Trap shells.
In the fall of 2007 the Illinois-based importer DKG started importing a wicked shotgun load made by an Italian company called
Cheddite Italia.
However, nitrated naphthalenes are contained in some varieties of the commonly used
cheddite. Thus, the most plausible hypothesis for the origin of the crystals is that they were formed in a fracture of the rock from gases containing unburned and volatilized explosive resulting from a blast.
The Societe Centrale de Dynamite, a holding company formed in 1887 to coordinate the various interests of Alfred Nobel and his partners, was moving into plastics and new kinds of explosives (such as
Cheddite) in the 1900s under Paul Clemenceau, a graduate engineer and brother of Georges Clemenceau, while Maletra, an old-line producer of acids and alkalis for the Norman textile industry, was moving into the refining of cobalt from ores imported from New Caledonia.
Hodgdon's extensive data for Longshot includes a variety of loads for Remington, Winchester, Fiocchi, and
Cheddite cases as well as for factory and aftermarket wads.