.380 Auto vs .45 ACP
The .380 Auto vs .45 ACP comparison highlights the trade-off between concealability and stopping power. The .45 ACP (230gr JHP at 850 fps) delivers 343 ft-lbs at 50 yards, more than double the .380 Auto's (90gr JHP at 1000 fps) 166 ft-lbs. Penetration tells a similar story: the .45 ACP reaches the FBI's optimal zone at 12.2-12.3 inches while the .380 falls short at 8.8-9.0 inches. The .380 Auto's advantage lies in recoil at just 1.41 ft-lbs compared to the .45 ACP's 6.06 ft-lbs, enabling smaller, lighter pistols suitable for deep concealment. Performance varies with ammunition selection and firearm platform.
Ammunition Parameters
.380 Auto Parameters (Self-Defense Load)
.45 ACP Parameters (Self-Defense Load)
.380 Auto vs .45 ACP Ballistics Chart
Comparing bullet drop at various ranges between .380 Auto and .45 ACP.
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.380 Auto vs .45 ACP Energy Comparison
Comparing the muzzle energy and energy retention at various distances between .380 Auto and .45 ACP.
.380 Auto vs .45 ACP Bullet Penetration
Comparison of estimated penetration depth in 10% ballistic gel between .380 Auto 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
.380 Auto vs .45 ACP Recoil
Comparing recoil energy and impulse between .380 Auto and .45 ACP.
.380 Auto 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
.380 Auto vs .45 ACP Velocity
Velocity decay from muzzle to 50 yards for .380 Auto and .45 ACP.
.380 Auto vs .45 ACP Average Cost
Comparing cost per round and training affordability between .380 Auto and .45 ACP.