What 357mag round is most powerful

[Bill]

What 357mag round is most powerful at 50yds?
For the longest time it was the 140gr
is there a factory round that will do 550 ft-lbs or higher at 50yds, out of a 4in barrel?

[Ah Pook]

Great GOOGLEY Moogaly

http://thefiringline.com/forums/showthread.php?t=180144
http://www.handloads.com/articles/default.asp?id=30

Hmmm, this looks familiar.
http://smith-wessonforum.com/ammo/18...-powerful.html