It is not, however, a disintegrating ray gun of doom and destruction that will stop your attacker in his tracks each and every time. The .45 ACP, in fact, has significantly less stopping power than the .357 Magnum. Even in a good Jacketed Hollow Point (JHP) round, the .45 simply can't match the .357 Magnum's stopping power. Despite this, I would not feel "under armed" carrying my 1911-pattern pistol in .45 ACP. When I carry that weapon, however, I know that my .357 Magnum produces a more definite, more reliable "one-shot-stop" — but to achieve that, the bullet has to hit the body's center of mass. Doing the Math: Velocity and Momentum We can verify this by looking at the numbers again. The .45 ACP leaves the muzzle of the gun at roughly 850 feet per second. The .357 Magnum, by comparison, travels at 1350 feet per second when it leaves the barrel of the gun. Velocity is multiplied by itself to determine impact power (momentum). That means that velocity, squared, equals momentum. Even a little increase in velocity makes a BIG difference in potential handgun stopping power (up to a point at which we begin to over-penetrate, such as in the .44 Magnum). 26 www.BulletproofDefenseDVD.com
Report - Stopping Power
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