Actually Black Talons only perform well in the crush cavity category. In the stretch cavity other rounds like Hydra Shoks perform better.
Top 3 Real Street Results for "1 Shot Stops" from autopsy results following a single hit to anywhere in the torso to a human in any condition. Many were during a police action. Taken from Stopping Power by Evan Marshall & Edwin Sanow.
#1 Hydra Shok 230gr
Total shot 173 Total stops 166 Percent 96
#2 Golden Sabre 185gr
Shot 83 Stops 80 Percent 96
#3 Gold Dot 230gr
Shot 45 Stops 42 Percent 93
#9 Black Talon 230gr
Shot 96 Stops 84 Percent 88
I should have been clearer. I meant any 1 shot to the torso per Even Marshall and Ed Sanow. 1 shot stops are no myth according to Marshall and Sanow (Unless you are talking about Fuller index stops). They went and proved it by using autopsy reports for their stats and nothing else.