They should work. If you use cast bullet data for plated bullets, you're a bit on the high side, per Hodgdon data (3.3 gr. to 3.7 gr), but being a .38 Special, I'd not expect a major problem (especially if shooting these in a .357 Magnum revolver).
Jacketed bullet data calls for 3.8 gr. to 4.3 gy Lee data book didn't have any numbers for W231 at 158gr , so I just read over some threads on a couple of sites and it looked like many of people were using 4grs of w231 with this weight of bullet. I will be shooting these out of a .357 , so I don't expect any problems. I will test these out before loading up the rest of the 500 I have to reload.