10mm Auto vs .45 ACP
Typical factory loads side by side: speed, energy, BC, twist, range and what each one is built for.
The short answer
With typical loads, the 10mm Auto is about 400 ft/s faster at the muzzle (1,250 vs 850 ft/s).
The 10mm Auto carries about 69% more energy at the muzzle (624 vs 369 ft-lbs), which usually also means more recoil.
On the same size target, the 10mm Auto has the longer point-blank range (117 yd), so you can hold dead-on a bit farther without adjusting.
Side by side
| 10mm Auto | .45 ACP | |
|---|---|---|
| Made for | Powerful semi-auto round for hog and deer hunting and woods carry against black bear. | John Browning's U.S. Army round for the 1911. Big, slow bullet for self-defense and bullseye target shooting. |
| Typical load | 180 grJHP · 5" barrel | 230 grJHP · 5" barrel |
| Muzzle speed | 1,250 ft/s | 850 ft/s |
| Muzzle energy | 624 ft-lbs | 369 ft-lbs |
| Typical BC (G1) | ≈ 0.16typical, varies by brand | ≈ 0.17typical, varies by brand |
| Twist rate | 1:16 | 1:16 |
| Practical range | 50 yd hog/deer | 25 yd |
| Point-blank range | 117 yd6" vital zone | 85 yd6" vital zone |
| Recommended platform | Full-size pistolStout with full-power loads | Compact or full-size pistolMore push than snap |
Which one fits you?
10mm Auto: Powerful semi-auto round for hog and deer hunting and woods carry against black bear.
.45 ACP: John Browning's U.S. Army round for the 1911. Big, slow bullet for self-defense and bullseye target shooting.
For most hunters, the right pick is the one you can shoot accurately and comfortably, in a rifle that fits how you hunt. Good shot placement and a bullet built for your game matter more than small differences on paper.
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Speed, energy and BC are typical figures for the listed load; real numbers vary by brand, lot and barrel length. Always check the ammo maker's data for your exact load.