Help identify these two cartridges?

[butlersrangers]

The .30-40 cartridge on the left is likely Frankford Arsenal, May, 1902 production.

The .30-40 cartridge on the right is likely from the 1898 Kynoch contract.
(Possibly, you have incorrectly recorded the month/year marking)?
It is probably loaded with Cordite powder.

Information

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[Kyle M.]

The .30-40 cartridge on the left is likely Frankford Arsenal, May, 1902 production.

The .30-40 cartridge on the right is likely from the 1898 Kynoch contract.
(Possibly, you have incorrectly recorded the month/year marking)?
It is probably loaded with Cordite powder.

I was thinking the one on the right might be Kynoch but wasn't expecting the U.S. military to have a contract with Kynoch for ammo. I'ts hard to tell but that could definitely be a '98 not '88 that I'm seeing. When shaking the cartridge it doesn't quite sound like loose powder so I'm guessing it's cordite.

[butlersrangers]

During the Spanish American War, Frankford Arsenal could not meet ammunition demands of the U.S. Army.

Contracts were let with Union Metallic Cartridge Company, U.S. Cartridge Company, Winchester, and Kynoch.

There were problems with the ammunition from some of these contracts.

Apparently, there were problems with the performance of cordite in the .30-40 Krag.

There were problems with the other makes also.