Personally, I find one of the great joys of rimfire revolvers is their ability to digest anything. Given the current availability of a wide variaty of ammo, I'd try several and then stock up on what works for your needs.
That said, it really depends on your quarry and distance to be shot. A bullet moving too slow may not have the energy to kill humanly or may drop too much over a distance to allow effective use of your sights.
Lastly, FWIW While I haven't tried it myself, we've been selling a metric butt ton of CCI quiet at the shop ( to suburban critter gitters). They rave about it.

__________________
Dave