I don't care if it's blue but I feel
BoogieMan on the 4"-6" for .357 magnum. I know .357 is popular in snubs and all sorts of lightweight concealment models but it just doesn't feel right to me. When you've got big power in a small package, including small grips and low weight, what purpose will it really serve?
We've all seen a few sharpshooters who can hit a mouse's eye with hot loads from a Derringer. (Forget checking the skid-mark of a target.) We've all seen guys who like the feel of .357 magnum force blasting off from a tiny piece of aluminum cradled in their beefy mitt. Chances are, you're not that guy. I know I'm not.
So the place where this might really matter is the tightest of emergencies. It is when you might be pinned up against a wall, on the ground, or you've got a charging beast--human or otherwise--just inches from impact. It is the situation when you needed concealment and you just manage to get the gun out. Here, if you've got a revolver with a smooth profile or shrouded hammer, it could very well save your life. These are situations when you've got point-blank discharge and most of the normal shooting considerations, from accuracy to follow-up, are not necessarily crucial. Here, an anti-personnel mine on a slightly concave steel plate would do the trick.
The question is, how many defensive situations are definitely that? What about the 3-30ft range? Do you really want the minimalist hand-cannon there or would you prefer a much more manageably shootable caliber? Restricted to ultra-concealment at those ranges, I would greatly prefer a .38, .380, or .32 magnum. As per the trade-off in one of those super-tight emergencies, I'm not going to worry about a little less power and I might wonder if the extra was really necessary. (Besides, how many guys with those tiny .357 revolvers are just packing them with .38+ in the first place?)
So when I want to carry .357 or up, I'm going to do it on a decently shootable frame with at least 4" of power-preserving barrel in situations with less need for concealment.
(I've been toying with the medium-carry option of our magnum middle-child, the .327 Federal. We'll see where that project ends up...)