One bullet for .38 Spl or .357 out of a quality revolver: Lyman's 358156 gc. With or without the GC, it's a honey and has been for 75 yrs or so. With its double crimping groove, it allows use of .38 Special brass to produce .357 Magnum velocities IN .357 FRAMED GUNS.
Without the check and w/light loads of #2, Bullseye, or 231, it'll stay with most any of the full wadcutter tgt bullets in all but camp Perry level shooting.
Loaded mid-level with Unique, Herco, WSF it'll duplicate the old FBI load of a 158 LSWC at 950 fps and do it with superb accuracy & w/o the GC too.
For really good shooting up at .357 Magnum velocities, 2400 produces the velocity and accuracy as do 296 / 110 and Ac#9. At this level, 13.0 gr of 240 with a GC'd 358156 will give me sub-2" gps at 25 yds from any of my .357's.
It's overall length and skinny scraping band allow it to feed through my 1894 Marlin with ease and the Magnum level 2400 load has produced dozens of 3 shot groups at or below 2" AT 100 YDS SCOPED. The gas check and good lubed allow it to perform at these velocities with a wheel weight alloy cut 30% with pure lead....this is a prescription for an expanding bullet with suitable hp mold.
One choice...for all uses...easy to pick Lyman's production of the old Thompson bullet the 358156 GC. It's my #1 choice for the Rugers Smiths and one Colt I've owned since 1967.
Best regards, Rod Edit: Anneal your gas checks with a Bernzomatic torch...cherry red, let 'em cool....they'll improve the accuracy of your gc'd bullets.