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The first .38 Special rounds were blackpowder.
Incidentally, most rounds were also loaded with "semi-smokeless" powder such as Lesmoke.
Lesmoke produced less flash and smoke than blackpowder, and less pressure than smokeless. Old cartridges that have copper primers are blackpowder, brass primers are semi-smokeless, nickel primers are smokeless. This for older rounds only.
Bob Wright
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