.357 Mag vs .357 SIG
The .357 Magnum vs .357 SIG comparison matches a revolver legend against its semi-automatic counterpart designed to replicate its ballistics. The .357 Magnum (125gr JHP at 1500 fps) delivers 479 ft-lbs at 50 yards while the .357 SIG (125gr JHP at 1350 fps) produces 388 ft-lbs. Penetration differs substantially: the magnum reaches 18.0-18.6 inches, exceeding FBI recommendations, while the .357 SIG stays within the optimal zone at 14.4-14.8 inches. The .357 SIG generates less recoil at 7.14 ft-lbs versus the magnum's 9.11 ft-lbs, though the revolver's heavier frame absorbs some of that energy. Performance varies with ammunition selection and firearm platform.
Ammunition Parameters
.357 Mag Parameters (Self-Defense Load)
.357 SIG Parameters (Self-Defense Load)
.357 Mag vs .357 SIG Ballistics Chart
Comparing bullet drop at various ranges between .357 Mag and .357 SIG.
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.357 Mag vs .357 SIG Energy Comparison
Comparing the muzzle energy and energy retention at various distances between .357 Mag and .357 SIG.
.357 Mag vs .357 SIG Bullet Penetration
Comparison of estimated penetration depth in 10% ballistic gel between .357 Mag and .357 SIG 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 .357 SIG Recoil
Comparing recoil energy and impulse between .357 Mag and .357 SIG.
.357 Mag Recoil (Self-Defense Load)
.357 SIG 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 .357 SIG Velocity
Velocity decay from muzzle to 50 yards for .357 Mag and .357 SIG.
.357 Mag vs .357 SIG Average Cost
Comparing cost per round and training affordability between .357 Mag and .357 SIG.