Speer manual #13 lists 10.0 gr of AA#5 max load at 1152 fps from a six inch revolver. Start load is 9.0. This is for the 158 gr Gold Dot HP in .357 Magnum. Standard Primer.

HS-6 : 9.7 max at 1040 fps with magnum primer. 8.7 start load.

This is with their primers and cases.

The fastest load they list is 1265 fps with 2400 powder.

Hope this helps. As always, every load is an experiment.

I have several manuals if you need more info.