.357 SIG vs .40 S&W
The .357 SIG vs .40 S&W debate centers on two law enforcement calibers with different approaches to terminal performance. The .357 SIG (125gr JHP at 1350 fps) trades higher velocity for a lighter bullet, producing 388 ft-lbs at 50 yards. The .40 S&W (165gr JHP at 1175 fps) uses a heavier projectile at moderate velocity for 413 ft-lbs at the same distance. Both achieve optimal FBI penetration depths: the .40 S&W reaches 14.9-15.3 inches while the .357 SIG hits 14.4-14.8 inches. The .40 S&W generates less recoil at 5.94 ft-lbs compared to the .357 SIG's 7.14 ft-lbs. Performance varies with ammunition selection and firearm platform.
Ammunition Parameters
.357 SIG Parameters (Self-Defense Load)
.40 S&W Parameters (Self-Defense Load)
.357 SIG vs .40 S&W Ballistics Chart
Comparing bullet drop at various ranges between .357 SIG and .40 S&W.
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.357 SIG vs .40 S&W Energy Comparison
Comparing the muzzle energy and energy retention at various distances between .357 SIG and .40 S&W.
.357 SIG vs .40 S&W Bullet Penetration
Comparison of estimated penetration depth in 10% ballistic gel between .357 SIG 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 SIG vs .40 S&W Recoil
Comparing recoil energy and impulse between .357 SIG and .40 S&W.
.357 SIG 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 SIG vs .40 S&W Velocity
Velocity decay from muzzle to 50 yards for .357 SIG and .40 S&W.
.357 SIG vs .40 S&W Average Cost
Comparing cost per round and training affordability between .357 SIG and .40 S&W.