I've never taken a .357 to Africa, but that 353 should do a great job on duikers, steenbok, springbok and even impala and bushbuck sized animals. I remember that we're both fans of the 180 XTP. I look forward to hearing about your FA biltong hunting.
After I wrote this, I remembered a tidbit of info about the " moderately powered ".357 Magnum: The late Elgin Gates was treed by a Cape Buffalo...and the buff wouldn't leave. After hanging in the tree for a while, Elgin tired of this, and drew his short barreled Smith .357, which was loaded with the old metal piercing ammo. He drilled the buff through the boss and brain, dropping him dead.
Now...have we hi-jacked this thread or what?