Has anybody done any loads for their Snider-Enfields using smokeless?

If got a couple duplex loads that I'm told work well, but I've got soooo much powder sitting around I'm looking to use some of it.
Especially some bulk canister stuff that is close to Unique. Large flake, slow burn.

I haven't fired mine yet, just doin' some research.

This pre-1900 stuff is all new to me.

Thanks.
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