Head to Head
9mm vs .40 S&W
Capacity and shootability vs. a bigger, faster bullet.
9mm
Best for: Most shooters
- Higher capacity
- Cheaper practice ammo
- Softer, faster to control
- Modern JHP closes the gap
VS
.40 S&W
Best for: Those who want more bullet
- Heavier bullet, more energy
- Same frame size as 9mm
- Popular with some agencies
- Slightly fewer rounds
The Verdict
The industry has largely shifted back to 9mm for capacity, cost, and controllability. .40 still works well, but most shooters are better served by 9mm today.
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