What shot cups are you using? Not to hijack the thread. I'm using claybuster 410 wads over an over powder card then card on top.Card wad and Elmers at the case mouth sounds like a pain, but it's not. I'd trust it over a gas-check, and it's very easy and quick with about an hour dry time.
I've been loading .410 shells in brass cases for awhile (with shot cups) for awhile now with good success, and gonna do it with standard cases with cut-off crimps. jd
I'm using the 1/2 oz Claybusters or knock-offs of them so far. I've also got Remingtons, and I think Feds in my box of stuff. I got a big box of 410 cast-off stuff at a gunshow for peanuts. -- primed cases, wads, of several types, new empties, once fired empties--What shot cups are you using? Not to hijack the thread. I'm using claybuster 410 wads over an over powder card then card on top.
Speer used to list it in their capsule boxes but SLOW is your friend as you get less doughnut/ring effect from the rifling. I normally use titegroup and W231 even in my 410 all brass cases. Crimped gas check on top is probably the most robust and reliable method but elmers glue on top of the over shot card works pretty good and cheap. Crimped gas check may help with complete and cleaner burns as this is the biggest draw back I've seen with titegroup especially in the all brass 410 casesWhere do you guys get load data for shotshells?