When I had mine, I loaded it with
- Cor Bon 125 gr .38spl +P.
- Federal NyClad 125 gr standard pressure.
- Remington Golden Saber 125 gr .357Mag.
By far the NyClads were the most comfortable. (too bad they are gone now)
The GS the most accurate. (IIRC - the 125 gr GS is supposedly made especially for snubbies)(All I know is my model 66 was very partial to them, and finickey about most other brands and bullet weights - I had no problem drilling a sub 2 times caliber hole @ ~ 25 feet in the center of targets with a full chamber of them - good round)< - for those that go by group size, that equates to a hole a little under 3/4 of an inch.
The CB's the best compromise. Accurate enough and they stepped out pretty well from the short barrel, but without all the noise and recoil of the magnum loads. <- the load I almost always charged it with as a house gun.
Another round that many speak very highly of is the .38spl +P 158 gr LSWCHP
(lead semi-wadcutter hollow point). I have no actual experience with factory offerings in that load. I have shot hundreds (if not thousands) of handloads that duplicate it though. If the factory stuff performs like my handloads, I'd probably go with it depending on the individual gun itself. My finicky model 66 didn't like 158 gr bullets though. Only 125 gr.