The Scot reloading manual V.8: (1993)
https://www.shotgunworld.com/attachments/scotpowdereighthedition-pdf.54049/
contains load data for many handgun cartridges.
38 Special 6" (Brass cases, standard primers) :
158 Hornady JFP 1.435" 4.0-4.4 Pearl Scot 797 fps 16.6 Kcup 56% load density
158 LSWC COAL=1.460" 3.8-4.2 Pearl Scot 903 fps 15.7 Kcup 55% density
Have Fun!!
(That's one manual I didn't previously have.
So thanks for sending me out onto the information dirt back-roads to find it.)