Here's a pic of all the different 125gn bullets from the Midway 357 load map. Too many variations in lengths and cannelure positions to start guessing. As others have said already, the seating depth is quite different from brand to brand. Example- Nosler seats about .025" deeper in the case than a Hornady XTP and is the reason the powder charge is considerably lighter.
I'd suggest downloading the entire
Midway 357 load map. It has load data for every bullet in the below picture and several more from 110gn all the way up to 200gn. I found it much easier to use specifics when I started loading 357 Magnum, and much safer to get an exact starting load.