This is a 1.1 kg (2.44 pound empty. 10mm Auto is probably a better hunting cartridge than .45 ACP simply because of the 10mm's flatter trajectory. As a teen I spent summers with my siblings at my dad’s in Alaska, and there’d be reports of bear maulings quite often.

Their one shot incapacitation rate was within 4%. The following ammunition cartridge ballistics information and chart can be used to approximately compare 10mm Auto vs .45 Colt (LC Long Colt) ammo rounds. The 10mm was designed and produced by Jeff Cooper in 1983. 10mm vs 45 ACP—A Brief Background.
It was designed following the need to provide the US Calvary with a pistol round with higher stopping power.

The 10mm will have more energy, the .45 ACP will have more momentum. 10mm is 37,500 and 357 Sig is 40,000. Study after study, both in the ballistics lab and based on real world shootout data, show the .45 is not statistically better than any other common self-defense round (9mm, .40 S&W, 10mm… The old standard for .45 ACP is a 230gr bullet at 850fps.

9mm and 40 S&W a 35,000 and 9mm Plus +P is 38,000.

At self defense ranges it isn't going to matter.

A 9mm is generally cheaper, has less recoil and higher velocity than a .45 ACP. The .45 ACP, on the other hand, was designed by John Browning in around 1905. 45 ACP Pluas+P is 23,000.
If a barrier is involved, a 9mm +P load is superior. .45 ACP vs 9mm comparison. Standard 45 ACP operates at 21,000 PSI.

All of our cartridges took more than 2 shots on average to stop someone. These points against the .45 ACP are valid, but the 10mm Auto is far from perfect and has had a much, much spottier past than the .45 ACP. 45 (11.4mm) caliber ACP. The .45 ACP (Automatic Colt Pistol) cartridge holds bullets that have a diameter of .452 inches (11.5mm) so it is slightly larger than the 9mm (.355 inch bullets).

Their failure to stop rates were all within 1%. A properly placed shot from either is going to create a very similar wound to that created by the other.

(though the 45 ACP was close to needing only 2.) Please note, the following information reflects the estimated average ballistics for each caliber and does not pertain to a particular manufacturer, bullet weight, o The .45 ACP is probably a bit better in terms of a larger wound cavity if no barrier is involved.

You can carry a lot more 9 mm rounds in the mag, and it is easier to shoot well. Borg Warner , Aug 18, 2019 Borg Warner , Aug 18, 2019