I shoot 2 or 3 times as many 148 DEWC's as anything else in .38 Special and .357 Magnum. I load them light for target shooting, and heavy for blasting at steel targets. The "blasting ammo" would also be a great self-defense load if you're OK with using handloads for SD.
Regular brass works just fine. I don't load them all the way flush with the case mouth, I crimp them in the crimp groove. If you try to seat them flush you might need the thinner brass (anything with the 2 lines in it, or an R-P headstamp)
"The only way to stop a bad guy with a gun is with a good guy with a gun"