Oh boy. Well, at least you didn't ask an easy one, LOL!
Brass shotshells are for the most part a real excercise in frustration. First, few if any of the wads sold will work. Why? Because brass shotshells are much thinner than plastic or paper-walled ones. So wads made for the usual kind will be too small for brass.
So you'd have to find a source of .42 or .43 wads. Lotsa luck. (As an example, 12-ga brass shells take 11 gauge wads.)
I have a suspicion that load data would be off, too. I'm not sure how much, or if it would be high or low, but I'd bet it varies from plastic shell data. The drastic change in primers alone would make that a certainty.
Finally, I've never even SEEN a brass .410. Where in the dickens did you get some?
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