For 38+P out of a 2", I trust:
1) The Winchester or Remington 158+P lead hollowpoint (LSWC-HP+P). The Georgia Arms variant holds promise, and old-stock Cor-Bons are the hottest.
2) Gold Dot 125 +P JHPs as made by Speer, Georgia Arms, Proload and Black Hills.
3) Winchester's 130grain +P Supreme.
From a 5" barrel, there are probably even more JHPs that will expand properly. Of the three above, the Gold Dots work across a broader velocity range than most, so I'd probably prefer that - but any of the three above should work.
As these three new projectiles come online, from a 5" the 147 might be the best possible, while the 135 looks REALLY nice for 2" barrel +P apps. These aren't shipping yet.
The choices for 2+ barrel non-plus-P ammo are really bad right now. Federal's 125 Nyclad had a decent rep but is out of production. Federal's 110 "Personal Defense" hydrashock was supposed to take over the role but it sucks...the only way it will see 800fps from a 2" is with a hurricane tailwind
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The Village Metalworks answer is basically a wadcutter loaded hot - compared to the usual "target grade", that's not an insane idea:
http://www.villagemetalworks.com/Frame.htm
With luck, one of the "petals" will break off and it'll tumble funky. If not...well, at least it's a hot wadcutter.
The other option is to just get a 158 semi-wadcutter loaded as hot as possible short of +P. Georgia Arms has one at "775fps" - 700 if you're lucky from a 2".
http://www.georgia-arms.com/pistol.htm#ab
My take?
If you have a snub that's not supposed to shoot +P, you might consider just carrying the Winchester 158+P LSWC-HP and not practicing with that load. Is this optimal? No. Not hardly. But...until somebody sorts out an option, and it LOOKS like the Gold Dot 110 might be a start, you really need a +P capable carry gun.