4.0 grains of IMR Trail Boss with a 158 grain LSWC. Not a barn burner for velocity. A good paper puching, and steel shooting load. The only cleaning I have to do to my Mod 67 after shooting this load is cleaning off the carbon from the lube. They did very well in a friend's snub nose revolver as well.
No matter how many times you do it and nothing happens it only takes something going wrong one time to kill you.