I've used 7.5 to 8.5 grains of Unique under an RCBS SWC cast bullet for over 40 years. I have tried other powders, but bang for the buck and 10 ring accuracy with excellent performance to 200 yards, a 210-220 grain cast bullet over the above powder charge is as good as it gets.

I might add that it's easy on the forcing cone and my Model 58 and Model 57 show no sign of gas cutting or forcing cone erosion. Other than holster wear they are virtually new guns after thousands of rounds downrange.

__________________
Keep your powder dry.