I used to be in the bullet business... went to a lot of trouble to make good quality hard cast bullets. If you load your own, you can be sure the lube groove is full & that the bullets are indeed hard enough. I sold a lot of bullets to guys loading 38 Super to Major levels without leading & that's comparable to .357. In fact the bullets can be interchanged in you use a taper crimp.
Another trick is to wipe down a gun inside & out... yes, barrel & chambers too, with BreakFree CLP prior to shooting. (Everything but the grips! LOL!!) Run a treated patch through, then a dry one, leaving just a film. Most of the fouling ends up on top of the film & much faster cleanup. After the Dept Armorer saw me do it, he bought gallon jugs & spray bottles.