I've been fat on.38 Special brass and 158-grain RNs for quite a while and finally motivated myself to check that chore off the list yesterday afternoon. The result is 150 rounds of the stuff.
I resolved one quandary on the conservative side. My only primers were magnum, and In a large library here I simply couldn't find data for .38 Special with mags. Since I am something of an old woman about unknown pressure factors, I backed off a tenth of a grain from the a Speer starting load of Unique. They'll be fired for practice and entertainment only from a ported Taurus .357 snubby. Unless, of course, someone makes me an offer I can't refuse for a nice used (Bill) Ruger single action in .357.