Jim,
FOr the most part you are correct. When the transition from black powder to bulk smokeless many saw no reason to change from the brass hull that had served them for long. In fact the brass hull continued to serve them useing smokeless powder. I have tried IMR 7625 with berdan and pistol primers with out success. They were bloopers. I don't have my hands on the information now but in The American Rifleman some 45 odd years ago there was an article on loading brass hulls with a list of powders and wads. The one powder I remember thatr is still being made is Red Dot. Hammer Doubles hulls were extruded brass with 209 primer pockets. The 7625 powder charges they listed were frightening yet the pressures were low and the velocity was excelent.
Harry
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