The FBI Just Settled the 9mm vs .40 vs .45 Debate

I sat down inside the FBI’s Ballistic Research Facility with Scott, a 23-year FBI veteran and career lawman, to talk about the Bureau’s long and sometimes controversial history with handgun calibers. From revolvers to 10mm to .40 S&W, and finally back to 9mm, Scott explains the data, the testing, and the lessons that shaped the FBI’s choices. We cover the Miami Shootout of 1986, the rise and fall of 10mm, why .40 S&W became the standard, and why the FBI ultimately made the decision to return to 9mm. This is the most in-depth, first-hand explanation of the FBI’s caliber decisions ever filmed, straight from the people who test and select the rounds. CONTENTS: 0:00 Introduction 4:00 FBI Guns & Ammo Before 1986 6:18 1986: The Miami Shootout 8:39 New Gun & Ammo Selection After 1986 11:30 The Rise and Fall of 10mm 14:41 .40 S&W is Adopted 17:17 9mm Replaces .40S&W 22:40 Why 9mm is Better than .40 S&W or .45 ACP 26:55 Conclusion