Had a 4" 19 long ago. Sold it for nearly what I paid for it about 5 years later. (The GP100 that replaced it fits my hand better.) Mind you, the trigger had been done. Shot bullseye with it for years.
Use .357 brass loaded to .38 Special velocities and it won't give you any trouble. If it means anything, the 19 was Skeeter Skelton's(an old, deceased, gun mag hack) favourite.