Geronimo45 asked, "An interesting study in semi-opposites would be the .455 Webley cartridge (ultimate in big and slow), throwing a slug around 260 grains at around 650 FPS... because the British had the notion, apparently, that the slower the bullet travelled, the more likely it would be to rip and tear the insides instead of just puncturing 'em, thus causing more damage. No idea if that theory was disproved, if there was any basis in fact for it at all, or whether Lord Know-it-All decided, over a glass or two of brandy at the Drones Club, that it must be so."
The Brits actually did some serious studies, including animal shooting, in the early 1900's when they adopted the .38/200 British round. A S&W .38 Case (Not the Special) with a 200 gr soft lead bullet, which had excellent stopping power. Unfortunately the Huns attacked the lead bullet as "illegal according to the laws of war" a very broad interpretation by serious propagandists from a country using poison gas and flame throwers. The jacketed bullet load was not as successful.
http://en.wikipedia.org/wiki/Webley_Revolver#The_Webley_Mk_IV_.38.2F200_Service_Revolver
In WWII the Brits went to the Hi-power officially and a lot of lend lease Colts unofficially.
For many years the US ammo makers had a 200 grain load in the .38 Special at standard velocities. Hollow points eventually replaced the big, soft lead, load. The 200 gr load enjoyed a good reputation into the 1960s.
Geoff
Who remembers a part time Police officer in the small town of his youth who was British, carried a Webley revolver, top break, and was acknowledged as one of the best shots on the force.