I'm with you on the .40 craze. Some outstanding marketing. People still believe they have something special with a .40. I believe the FBI was testing the newly developed 10mm and most of their agents couldn't handle it so they necked it down and told everybody they were getting .45 power with 9mm recoil... Ha!
Exactly the story I heard. FBI wanted a replacent for the .38 with more capacity than the .45 and more power than the 9mm but they couldnt hit shite with it so they chopped it down to the .40.
As for fast popularity it has to be the 300blk hands down its beat all the rounds that were supposed to replace .556, 6.8, 6.5 ect.
This post was edited on 4/22 at 6:22 am