While the USA was embroiled in the Spanish American War, The "
Army and Navy Journal" was publishing its weekly periodical on Saturdays. Below is a link to many of them during 1898. The 6/25/1898 periodical had an article with an argument for a single cartridge for all military branches on page 867. There are many interesting articles in this link if you care to dig in.
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Below is a more readable copy out of the journal.