.357 Mag vs .40 S&W
Examining the .357 Magnum vs .40 S&W ballistic comparison reveals distinct advantages for each cartridge in different categories. The .357 Magnum (125gr JHP at 1500 fps) maintains a significant energy advantage, delivering 479 ft-lbs at 50 yards compared to the .40 S&W's (165gr JHP at 1175 fps) 413 ft-lbs. Penetration testing places the .357 Magnum at 18.0-18.6 inches, which exceeds optimal defensive standards, while the .40 S&W achieves 14.9-15.3 inches, falling squarely within FBI-recommended penetration criteria. Recoil characteristics favor the .40 S&W, generating 5.94 ft-lbs of recoil energy versus 9.11 ft-lbs for the .357 Magnum. The .40 S&W offers a substantial cost advantage, with ammunition starting around $0.31 per round compared to $0.52 for .357 Magnum. Remember that performance varies considerably with different ammunition selections and firearm configurations, so these figures represent typical defensive loadings rather than definitive performance benchmarks.
Ammunition Parameters
.357 Mag Parameters (Self-Defense Load)
.40 S&W Parameters (Self-Defense Load)
.357 Mag vs .40 S&W Ballistics Chart
Comparing bullet drop at various ranges between .357 Mag and .40 S&W.
Try Our Ballistics Calculators
Want to calculate exact trajectories for these calibers with your specific loads?
.357 Mag vs .40 S&W Energy Comparison
Comparing the muzzle energy and energy retention at various distances between .357 Mag and .40 S&W.
.357 Mag vs .40 S&W Bullet Penetration
Comparison of estimated penetration depth in 10% ballistic gel between .357 Mag and .40 S&W at self-defense distances.
Self-Defense Ammunition Penetration
Notes:
- FBI standard for optimal penetration is 12-18 inches in 10% ballistics gel
- Our penetration data is calculated using mathematical models based on sectional density, velocity, and expansion factors. While not actual gel tests, our calculations have been validated against manufacturer test data and provide reliable estimates for comparison purposes.
- Actual results may vary depending on clothing barriers and other factors
.357 Mag vs .40 S&W Recoil
Comparing recoil energy and impulse between .357 Mag and .40 S&W.
.357 Mag Recoil (Self-Defense Load)
.40 S&W Recoil (Self-Defense Load)
Notes:
- Recoil calculations based on bullet weight, velocity, powder charge, and firearm weight
- Recoil energy indicates the felt force when firing the weapon
- Recoil impulse represents momentum transfer during firing
- Actual felt recoil can vary based on grip, stance, and firearm design
.357 Mag vs .40 S&W Velocity
Velocity decay from muzzle to 50 yards for .357 Mag and .40 S&W.
.357 Mag vs .40 S&W Average Cost
Comparing cost per round and training affordability between .357 Mag and .40 S&W.