Well it gets even more complicated frown

42 grain = 3 Dram Equivalent Bulk Powders
E.C. No. 1
Schultze
Curtis & Harvey Amberite (40 grains)
Sporting Smokeless Powder Syn., Ltd Cannonite Shot-gun (1897)
Smokeless Powder Co. S.S. (Smokeless Shot-gun) (43 grains)
Cooppal & Co. Wetteren, Belgium Cooppals No. 1
United States Smokeless Powder Co. "Gold Dust"
Dynamit Nobel's Troisdorf Powder Co. "Troisdorf"
American Wood Powder

36 Grain = 3 Dram Equivalent Bulk Powders
E.C. No. 2 (Improved)
New Schultze
DuPont Bulk (36.5 grains)
Hazard Powder Co. "Blue Ribbon" (37 grains)

33 Grain = 3 Dram Equivalent Bulk Powders
New E.C. (Improved) No. 3 (1897, introduced in U.S. in 1904)
Curtis & Harvey Smokeless Diamond (1903)
Walsrode Smokeless & Waterproof Gun Powder Co. Walsrode Gray
Louis Muller & Cie S.A. Mullerite No. 2
Nobels Explosive Co. Empire
"Cooppal's No. 2" (30 grain = 3 Dr. Eq.)

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