I read about one case where a British officer at (I think) El Alamein shot a fleeing Italian in the back with a .38. This guy had entered battle with just nine rounds of .38 ammo!

He was later wounded, too, and the pair were in the same aid station. The Italian died many hours later, in great pain all the while, while they waited for a surgeon.

On the other hand, I read about a case in the USA where a cop with a .38 S&W using the lead 200 grain Super Police load tagged a fleeing thug in the back at 75 yards. He was stopped dead in his tracks and the bullet was mushroomed.

My father once had a cheap topbreak marked U.S. Revolver Co. I think it was really made by Iver Johnson. Copied a S&W design. He had some of those 200 grain loads, but never shot the gun. I doubt the 200 grain ammo has been made since WW II. I think his box was from Winchester.
I beieve he got it from my grandfather, who probably bought it in the 1930's.