40 vs 45: Ballistics, Recoil, and Stopping Power

If you’re interested in carrying a handgun for self-defense, you need to consider the caliber. The importance of correct shot placement cannot be overstated, but the terminal performance of the ammunition is critical to reliable incapacitation. The most common handgun cartridges for law enforcement and private self-defense are the .40 S&W and .45 ACP. 

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