Don't use it in Colt 357's, but I do load S&W 357's with 2400...
Just kidding. Good powder for upper end loads that can be down loaded some. Not the "all or nothing" of W296/H110. I have come to prefer #9 though.
gotta agree with what's been posted so far, its the powder for experimenters in mag calibers, like said earlier, not an all or nothing like other powder and in my opinion, the goto powder for cast bullets in magnum cartridges, been using it for almost 30 years.
There are significant pressure differences. This was brought to light.......thinking 20-30 yrs or so ago......might have been Scovill or Pearce. Do not use Keith's data substituting magnum primers. Manuals often specify magnum primers with significantly reduced powder charges of 2400.
Tough to quantitate the effect on velocity. Personal experience with .44 Mag suggests well over 100 fps variance is quite possible. That was before people started talking/writing about this.
Interestingly, recently witnessing a similar "rethink" with the Hornet. Some sources deciding small pistol primers are best. OK, but pay serious attention to powder charge data.
Suppose I sound parental, but blithe component swaps have resulted in interesting threads.