It doesn't have to be that complicated.
For commercial bullets, the 148 gr HBWC is a good choice. You could also try the swaged 158 grain bullets from Hornady, and possibly Speer. The nice soft bullets will upset nicely in the throat and barrel.
I have also used with good success a variety of 130 grain cast RN bullets, usually unsized and lubricated in a pan or with Lee Liquid Alox. Also, the Lee 150 grain SWC, loaded out slightly to crimp in the top lube groove.
The point of impact will change with the different bullets, but if I am only playing at 15-20 yards, they will go reasonably close to the point of aim. I am not trying to punch out the x ring with these loads.
The light loads and light revolvers make these nice for teaching new shooters. At 7 yards or so these are all close to the target dot.