Taking info from several posts, what I'm gleening from this is that the 357 and 40 are about equal coming from snubbies and Glock 27's (and the like).
And with top-notch ammo the 40 edges out the 357 overall.
That sound about right?
Given a 4+ inch barrel the 357 gains ground rapidly and becomes the equal to 10mm, and will better 10mm by a bit from even longer hunting length barrels.
The gist of it is that the 357 simply hasnt finished burning before it exits the snubbie.