Land Owner, I have been experimenting with my 357 for several months now, and find it a most agreeable little gun. I have loaded 38 cases from pop gun to plus p, and have found that the 360 DW cases can be loaded as is, and the max. cases with just a few thousands of trim. This is without reaming to max.
I use Bullseye in my low velocity loads, have some hotter loads with Unique, and have been loading my max. brass with H110 and 180 jsp. All shoot well, some shoot excellent.
Have fun.