My .357 is in a handi rifle single shot. It is most accurate using the Lee .358 158 round nose plain base over 4.6 grains of Red Dot in either .357 mag case or preferably the longer .360DW case which is roughly halfway between the standard mag case and the max.
Handi rifles often will chamber the .360DW without trimming or anything more than adjusting OAL so that it is just a fly whisker short of touching the rifling.
Very inexpensive to load, with light recoil but a good thump on the far end.
I will be experimenting with a lighter SWC shortly.
The 4.6 grains of Red dot put 3 in the same hole at 50 yards, 2 touching at 100, but I let the pressure throw me and pulled the third shot an inch high and left.
But that was the shooter, not the load. All shot with CCI small pistol primers and all lubed with Ben's Liquid Lube and loaded as cast, no sizing.