Uploaded August 2026 | Updated September 2026, 2 weeks ago

---

9mm, .40, .45, or 10mm? A range counter breaks down the four big handgun calibers in plain English — pressure, recoil, and why the .40 is fading while the 9mm keeps winning.

- .45: a big, slow, low-pressure round (~800-850 fps) that lobs downrange
- 9mm: smaller (.355"), higher pressure (~1150 fps), controllable, more capacity
- .40: a bigger bullet at high pressure, so it snaps harder in recoil
- 10mm: the hot parent cartridge the .40 was shortened from
- The FBI's Miami shootout, the move to 10mm then .40 S&W, and the swing back to 9mm
- Why shot placement beats caliber

From the Gun Owners Radio archive (originally aired April 2018).
Join San Diego County Gun Owners: SDCGO.org/join
More from the show: gunownersradio.com

#SecondAmendment #Handgun #9mm #Pistol #GunOwnersRadio #ShootingSchool