It works well with 158 Gr bullets in .357 Mag, and 240 Gr bullets in .44 Mag, but it does it with more powder, heat, and recoil.
It also works well with 180 Gr bullets in .40 S&W.
It does need pressure to burn well, but be don't go over max data. "Flaming dirt" is a bit over the top, but it can get dirty at low pressures.
There are better powders that are more versatile, but it can work for a few things if that is all you can get.
When I use mine up, I won't replace it. I stopped using any in .357 or .44 Mag years ago. I will let my kids have it to load their .40s with.