.357 Mag vs .45 ACP

Analyzing the .357 Magnum vs .45 ACP ballistic comparison reveals stark contrasts in velocity, energy, and practical applications. The .357 Magnum (125gr JHP at 1500 fps) demonstrates superior energy retention, maintaining 479 ft-lbs at 50 yards compared to the .45 ACP's (230gr JHP at 850 fps) 343 ft-lbs. Penetration characteristics differ significantly, with the .357 Magnum reaching 18.0-18.6 inches, exceeding optimal defensive standards, while the .45 ACP achieves 12.2-12.3 inches, falling within ideal self-defense parameters. The recoil comparison favors the .45 ACP, generating 6.06 ft-lbs of recoil energy versus 9.11 ft-lbs for the .357 Magnum. The most dramatic advantage goes to the .45 ACP in ammunition cost, with prices starting around $0.26 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)

Bullet Type:
JHP
Bullet Weight:
125 grains
Muzzle Velocity:
1500 fps
Ballistic Coefficient:
0.151
Zero Range:
25 yards
Drag Function:
G1
Sight Height:
0.5 inches

.45 ACP Parameters (Self-Defense Load)

Bullet Type:
JHP
Bullet Weight:
230 grains
Muzzle Velocity:
850 fps
Ballistic Coefficient:
0.193
Zero Range:
25 yards
Drag Function:
G1
Sight Height:
0.5 inches

.357 Mag vs .45 ACP Ballistics Chart

Comparing bullet drop at various ranges between .357 Mag and .45 ACP.

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Try Our Ballistics Calculators

Want to calculate exact trajectories for these calibers with your specific loads?

.357 Mag vs .45 ACP Energy Comparison

Comparing the muzzle energy and energy retention at various distances between .357 Mag and .45 ACP.

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.357 Mag vs .45 ACP Bullet Penetration

Comparison of estimated penetration depth in 10% ballistic gel between .357 Mag and .45 ACP at self-defense distances.

Self-Defense Ammunition Penetration

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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 .45 ACP Recoil

Comparing recoil energy and impulse between .357 Mag and .45 ACP.

.357 Mag Recoil (Self-Defense Load)

Bullet Weight:
125.0 gr
Bullet Velocity:
1500.0 fps
Powder Charge:
16.1 gr
Firearm Weight:
2.5 lbs
Recoil Impulse:
1.19 lbs·sec
Recoil Velocity:
15.31 fps
Recoil Energy:
9.11 ft·lbf

.45 ACP Recoil (Self-Defense Load)

Bullet Weight:
230.0 gr
Bullet Velocity:
850.0 fps
Powder Charge:
4.6 gr
Firearm Weight:
2.5 lbs
Recoil Impulse:
0.97 lbs·sec
Recoil Velocity:
12.49 fps
Recoil Energy:
6.06 ft·lbf
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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 .45 ACP Velocity

Velocity decay from muzzle to 50 yards for .357 Mag and .45 ACP.

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.357 Mag vs .45 ACP Average Cost

Comparing cost per round and training affordability between .357 Mag and .45 ACP.

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