The difference between powders with slower or faster burn rates I believe has to do with how pressures are achieved (pressure curve). I use H110 for 44’s myself just don’t reduce the powder charge by more than 3% from MAX. I use Alliant 2400 for 357’s.
Here is a link to some data -
http://recipes.alliantpowder.com/rg....evolver&step=1
http://www.hodgdon.com/data/pistol/44remmag.php
http://www.hodgdon.com/data/pistol/357mag.php