.357 SIG vs .45 ACP
The .357 SIG vs .45 ACP comparison contrasts a high-velocity bottleneck design against the classic big-bore service cartridge. The .357 SIG (125gr JHP at 1350 fps) generates 388 ft-lbs at 50 yards while the .45 ACP (230gr JHP at 850 fps) delivers 343 ft-lbs. Both achieve optimal FBI penetration depths: the .357 SIG reaches 14.4-14.8 inches and the .45 ACP hits 12.2-12.3 inches. Recoil is comparable with the .357 SIG at 7.14 ft-lbs and .45 ACP at 6.06 ft-lbs, though the SIG's sharper impulse feels snappier. The .45 ACP offers wider ammunition selection and lower cost. Performance varies with ammunition selection and firearm platform.
Ammunition Parameters
.357 SIG Parameters (Self-Defense Load)
.45 ACP Parameters (Self-Defense Load)
.357 SIG vs .45 ACP Ballistics Chart
Comparing bullet drop at various ranges between .357 SIG and .45 ACP.
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.357 SIG vs .45 ACP Energy Comparison
Comparing the muzzle energy and energy retention at various distances between .357 SIG and .45 ACP.
.357 SIG vs .45 ACP Bullet Penetration
Comparison of estimated penetration depth in 10% ballistic gel between .357 SIG and .45 ACP 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 .45 ACP Recoil
Comparing recoil energy and impulse between .357 SIG and .45 ACP.
.357 SIG Recoil (Self-Defense Load)
.45 ACP 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 .45 ACP Velocity
Velocity decay from muzzle to 50 yards for .357 SIG and .45 ACP.
.357 SIG vs .45 ACP Average Cost
Comparing cost per round and training affordability between .357 SIG and .45 ACP.