Today I was going through the last of my late stepfather's stuff and I found a bandolier of clips of 303 Enfield cartridges. Because of their age I set to work using the kinetic bullet puller to deconstruct them.
This is what they were charged with: some kind of yellow/brown sticks.

I've been reloading metallic cartridges for decades and I've used and seen many different types of smokeless powders, but I've never seen ANYTHING like this.

Anyone know what it is? Thanks!

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