10mm Auto vs .45 Colt
Part of our full caliber comparison chart — energy, drop and recoil for every handgun caliber side by side.
The 10mm Auto vs .45 Colt comparison matches a modern powerhouse semi-auto against a frontier-era revolver cartridge. The 10mm Auto (175gr JHP at 1150 fps) produces 429 ft-lbs at 50 yards compared to the .45 Colt's (185gr FTX at 920 fps) 311 ft-lbs with standard loads. Penetration favors the 10mm at 15.5-15.9 inches versus the .45 Colt's 10.4-10.6 inches with expanding bullets. Recoil is similar: 7.69 ft-lbs for the 10mm and 7.01 ft-lbs for the .45 Colt. The .45 Colt has more headroom for hot-loaded rounds in strong revolvers; the 10mm provides higher capacity and faster reloads in a semi-automatic.
Ammunition Parameters
10mm Auto Parameters (Self-Defense Load)
.45 Colt Parameters (Self-Defense Load)
10mm Auto vs .45 Colt Ballistics Chart
Comparing bullet drop at various ranges between 10mm Auto and .45 Colt.
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10mm Auto vs .45 Colt Energy Comparison
Comparing the muzzle energy and energy retention at various distances between 10mm Auto and .45 Colt.
10mm Auto vs .45 Colt Bullet Penetration
Comparison of estimated penetration depth in 10% ballistic gel between 10mm Auto and .45 Colt at self-defense distances.
Self-Defense Ammunition Penetration
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
10mm Auto vs .45 Colt Recoil
Comparing recoil energy and impulse between 10mm Auto and .45 Colt.
10mm Auto Recoil (Self-Defense Load)
.45 Colt 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
10mm Auto vs .45 Colt Velocity
Velocity decay from muzzle to 50 yards for 10mm Auto and .45 Colt.
10mm Auto vs .45 Colt Average Cost
Comparing cost per round and training affordability between 10mm Auto and .45 Colt.
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