This thread may be of interest:
bluedot in .41 mag ?
When I loaded .41 Magnum, Blue Dot used to be one of my main "go to" powders. Immediately after Alliant issued their "sky is falling" warnings years ago, I called them and talked to an engineer about the less-than-max load I'd settled on: he told me, "That's acceptable." He also said that new load data would be forthcoming shortly.
Nice to see that's finally happened.
Incidentally, I picked up a new can of Blue Dot last Friday - the first one I've bought in this century, I think.