WEllk, the latest info debunks my "S== Spire Point suggestion> But confirms the "Component “S”== USCCo. Since the 9mm Glisenti was made (under “Maxim” headstamp during WW I) and components also possibly shipped to Italy for Loading there???
Anybody see any Wartime or immediate Postwar 9mm Glisenti rounds with an “S” stamped truncated Bullet???.
Interesting thread…I did think that the projie was a "bronze Point Sporter, but dismissed it as a Loading artifact…
Getting back to the 7,62 MN cartridge, the Round nose was the original M1891 cartridge, Smokeless. The M1908 Spitzer, ( or “L” ball) was also smokeless, but a better powder than the very early 1891 Powders.
Of all theb “Small calibre” Rifle rounds of the late 1880s ( fromn 1886) only the .303 Mark I was a solid Black Powder Pellet Load, and soon converted to Cordite in 1892. None of the others born in 1886-1895
(Lebel, Belgian, Commission German, Swiss, italian, Romanian, Dutch,
Austro Hungarian, Spanish, Turkish, etc were initially BP at all. All were designed for Smokelss, as was the 7,62x54R ( Derived from the 8x52R Nagant, itself a derivation of the 8x53R M88/90 Austrian.
ALL Smokeless, as inefficient as Smokeless was at the time ( But miles ahead of BP)… Smokeless powder intially was a fast Burning Powder…only the later development of size, shape of grains or flakes, and the use of flame retardants improved the efficiency of the Powders
up to and during WW I. Truely “Progressive” Powders only came onto the scene in the 1920s.
That’s why certain cartridges, designed before their time, failed…the higly erosive nature of the Powders ( Too hot burning) such as in the 6mm Lee US Navy, and the .276 Enfield P13 , and even the 6,5 Daudeteau. All these suffered from excessive Throat erosion, due to the very hot buring Powders…with the later 1920-30 Progressive Powders, they would have been quite efficient cartridges.
Other countries managed to modify the burning rates of Powders ( Britain with its Cordite MDT ( Modified-Tubular) and Italy replacing
Ballistite ( a disc-type double base) with the cooler “Solenite” in the early 1900s. The Users of the French/Germanic Flake Powders used coatings and graphite to slow the Burn rate, and the US went from the early small grain powders to the .30/06 Tubular ( “MR” Powders); all before WW I.
Even some of the early BP Small and Medium calibre Breechloaders went smokeless ( Portugal, M1899 Kropatschek, Britain .450 MH, Italy 10,4 Vetterli, Germany 11mm M71/84, etc, etc…either by the end of the 1890s or before WW I.
German 11mm used in Africa was smokeless by 1914.( although Old stocks of BP loads were still used…and reloaded.)
The rapid death march of BP for Military calibres began in Mid 1886, and was complete by the early 1900s.