For what it's worth, I now carry a BUG S&W 638 with Speer GD .38+P 135g short barrel JHP, (The ballistics are similar to the 9mm.) It weighs 1lb loaded and fits the front pocket well in a desantis nemesis holster. As for power, the .357 is impressive, but I would suggest at least an all steel revolver like the S&W 60, 640, or 649 weighing in at around 25oz or 686 at 34oz. I say this because my aluminum 638 is pretty snappy with .38+P rounds, and I believe .357 rounds in a light gun might be a little painful, doable but painful.
Also, with the 2" barrel, the first thing I did was put on a crimson trace laser to make sure.
And the various .410 revolvers? I'm still trying to figure out, why? I guess shooting a .410 out of a revolver might have some application, but I'd rather launch a .357 round.