The great debate: Why are we still arguing over 9mm v .45? (VIDEO)

By Adam Welch

If you’ve been in the firearms community for more than a few minutes, you’ve heard people argue about what caliber is best, worst or just plain silly. And that’s fine in and of itself, until it ends up distracting people from the realities of caliber selection as it applies to pistols for defensive shooting. If, to quote John Chapman, retired federal law enforcement officer and lead instructor of LMS Defense, “gun fights are won in millimeters and milliseconds” than it would seem like people’s time and energy would be better spent focusing on the perfection of their skills than making noise about which caliber is the best.
Handgun stopping power is simply a myth. There we said it and the FBI agrees. Not coincidentally, so do the laws of physics. Newton’s Third Law deals with equal and opposite reactions and applies directly to this discussion because, simply put, the amount of recoil energy you feel when firing a gun is roughly the same amount of energy the person getting shot feels when being struck by the bullet. So forget about knocking someone off their feet, they might not even know they’ve been shot or slow down unless you hit something vital.
Despite

Source: Guns.com