From Wheelguns to Wonder Nines: How American Police Ditched .38 Special and .40 S&W—and Why the 9mm Rules the Beat Today
Caliber Typical Service Handgun Examples Avg. Duty-Load Velocity / Energy Duty-Size Mag Capacity Felt Recoil (Impulse ft-lb/sec) Service Life / Parts Wear Street Price per 1,000...
No single winner — read the guide.