I'll add to calmex's observations about the Keith load: it is wicked accurate using the 358429 cast from quenched wheel weights.

Loading it in .38 special cases has the advantage of allowing it to be crimped in the crimp groove. Load that bullet in a .357 case and you'll likely have to crimp over the front driving band. The combination of the case & long bullet will make the round too long to chamber in a .357 if crimped in the groove.

Even loaded in .357 cases, I add 1 grain of 2400 and it's still extremely accurate.