The blackhawk is a beefy 357 with as much steel thats in the 6 shot version you can loads the 357s hot enough to equal the ft lbs of 8 mere mortal 357s...
The 357 blackhawk is about as overbuilt as they get (besides the FA and redhawk 357). I've got a few loads over 1000 ft lbs with cases that look great and fall out of the chamber still. Not recommending this, just saying...