Originally Posted by cp1969

What sets the .41 Mag apart from all other cartridges, making it unsuitable for Blue Dot with any bullet or powder weight? I wonder how Blue Dot can tell it's in a .41 Mag instead of a .44 Mag, or for that matter, that it's under a 125 gr. bullet in a .357.

Originally Posted by BLUEDOT37

Exactly! How can it be okay with a 110gr. & a 140gr. bullet but not with a 125gr. in a 357 Mag? Wouldn't that make it the worlds most selective powder? Oddly to, Alliant lists using it in the 357 SIG (11.0grs compressed) with a 125gr. bullet & a 38 Super with a 124gr. bullet !?! And it's okay in the 10mm Auto & 44 Mag, but not the 41 Mag !?! If this isn't just one of their legal department's CYA ideas, I don't know what is. I don't doubt cold weather issues, but there's other powders with that problem too.