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.45 ACP vs .45 Colt

Part of our full caliber comparison chart — energy, drop and recoil for every handgun caliber side by side.

The .45 ACP vs .45 Colt comparison matches two iconic American cartridges sharing the same bore diameter but designed for different platforms. The .45 ACP (230gr JHP at 850 fps) delivers 343 ft-lbs at 50 yards while the .45 Colt (185gr FTX at 920 fps) produces 311 ft-lbs. The .45 ACP achieves optimal FBI penetration at 12.2-12.3 inches, while the .45 Colt falls slightly short at 10.4-10.6 inches with this load. Recoil runs similar with the .45 ACP at 6.06 ft-lbs and .45 Colt at 7.01 ft-lbs. Semi-auto capacity favors the ACP while the Colt offers revolver reliability. Performance varies with ammunition selection and firearm platform.

Ammunition Parameters

.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

.45 Colt Parameters (Self-Defense Load)

Bullet Type:
FTX
Bullet Weight:
185 grains
Muzzle Velocity:
920 fps
Ballistic Coefficient:
0.14
Zero Range:
25 yards
Drag Function:
G1
Sight Height:
0.5 inches

.45 ACP vs .45 Colt Ballistics Chart

Comparing bullet drop at various ranges between .45 ACP and .45 Colt.

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Try Our Ballistics Calculators

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

.45 ACP vs .45 Colt Energy Comparison

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

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.45 ACP vs .45 Colt Bullet Penetration

Comparison of estimated penetration depth in 10% ballistic gel between .45 ACP and .45 Colt 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
  • These penetration figures come from a model of sectional density, velocity and expansion, not from gel tests. Use them to compare the two calibers, not as a measured result.
  • Actual results may vary depending on clothing barriers and other factors

.45 ACP vs .45 Colt Recoil

Comparing recoil energy and impulse between .45 ACP and .45 Colt.

.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

.45 Colt Recoil (Self-Defense Load)

Bullet Weight:
185.0 gr
Bullet Velocity:
920.0 fps
Powder Charge:
8.0 gr
Firearm Weight:
2.0 lbs
Recoil Impulse:
0.93 lbs·sec
Recoil Velocity:
15.01 fps
Recoil Energy:
7.01 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

.45 ACP vs .45 Colt Velocity

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

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.45 ACP vs .45 Colt Average Cost

Comparing cost per round and training affordability between .45 ACP and .45 Colt.

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