I did a fair amount of load testing over the years, but never shot much factory ammo in mine. Off the top of my head, it did well with 140 gr Speer FP or HP, the old Rem. 150 gr Ptd SP shot well and it really likes 180 gr Speer or Hornady SP, all with full charges of Reloder 7. Have also had some luck with 4227, and limited success with AA5744.
I have been meaning to try Lil' Gun in my 357s, but have not done that yet - it mgiht be a very good choice too, especially in a rifle.