” But .40 S&W is better than 9mm and... [repeat ad infinitum]”
I prefer the 10mm over the .40 S&W (.40 Short & Weak).
The .40 was developed from the 10mm FBI load, which was reduced from full power because some agents could not control the 10mm’s full power recoil.
The 10mm came about due to the analysis of the famous Miami shootout between the FBI and couple armored car robbers. The robbers killed four agents before they succumbed to their wounds, and the agents were mostly using 9mm autos at the time. One of the agents had a .38 snubnose and a shotgun too, I believe.
Nobody sober has called it Short & Weak in ten years.
I believe the perps had a .223 rifle. Tore the cops up.