I have done a good bit of edible small game hunting with my revolvers. The .32's and .38's do an excellent job. I learned early in my hunting life that .22 rimfire out of a revolver does not do a very good job. They are fine when head shots are used but sub standard IMO for body shots.

The reloaded with home cast properly shaped bullets in .32 and .38 on the other hand leave little to be desired.

I have also used the big bores (.44 Special and .45's) and they worked well, also but are arguably a bit much for small game (mostly in powder and lead consumed as they work very well as far as effect is concerned).

FWIW
Dale53