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  2. Handgun effectiveness - Wikipedia

    en.wikipedia.org/wiki/Handgun_effectiveness

    It is among the largest practical handgun calibers in use, featuring a .452 inches (11.5 mm) diameter bullet. With well-made expanding ammunition, a .452 bullet often expands to .70 caliber or larger. With a 9 mm Luger cartridge, the normal .355 bullet may expand to .50 or larger. Theoretically, a larger caliber should cause slightly more ...

  3. Stopping power - Wikipedia

    en.wikipedia.org/wiki/Stopping_power

    Stopping power is the ability of a weapon – typically a ranged weapon such as a firearm – to cause a target (human or animal) to be incapacitated or immobilized. Stopping power contrasts with lethality in that it pertains only to a weapon's ability to make the target cease action, regardless of whether or not death ultimately occurs.

  4. Bullet trap - Wikipedia

    en.wikipedia.org/wiki/Bullet_trap

    Bullets are then deflected clockwise around the deceleration chamber until they lose kinetic energy and fall out the bottom of the deceleration chamber. A bullet trap (or pellet trap when used specifically for air guns) is a device to stop and collect projectiles fired at a shooting range to prevent overpenetrations and stray shots.

  5. Physics of firearms - Wikipedia

    en.wikipedia.org/wiki/Physics_of_firearms

    Since the mass of the bullet is much less than that of the shooter there is more kinetic energy transferred to the bullet than to the shooter. Once discharged from the weapon, the bullet's energy decays throughout its flight, until the remainder is dissipated by colliding with a target (e.g. deforming the bullet and target).

  6. Terminal ballistics - Wikipedia

    en.wikipedia.org/wiki/Terminal_ballistics

    Bullet parts: 1 metal jacket, 2 lead core, 3 steel penetrator. Terminal ballistics is a sub-field of ballistics concerned with the behavior and effects of a projectile when it hits and transfers its energy to a target. Bullet design (as well as the velocity of impact) largely determines the effectiveness of penetration. [1]

  7. Teflon-coated bullet - Wikipedia

    en.wikipedia.org/wiki/Teflon-coated_bullet

    Their objective was to develop a law enforcement round capable of improved penetration against hard targets, such as windshield glass and automobile doors. Conventional bullets, made primarily from lead, often become deformed and less effective after striking hard targets, especially when fired at handgun velocities. The inventors named their ...

  8. Taylor knock-out factor - Wikipedia

    en.wikipedia.org/wiki/Taylor_knock-out_factor

    The Taylor KO factor multiplies bullet mass (measured in grains) by muzzle velocity (measured in feet per second) by bullet diameter (measured in inches) and then divides the product by 7,000, converting the value from grains to pounds and giving a numerical value from 0 to ~150 for normal hunting cartridges.

  9. Thompson–LaGarde Tests - Wikipedia

    en.wikipedia.org/wiki/Thompson–LaGarde_Tests

    The Army had previously been using the .38 Long Colt, and the cartridge's relatively poor ballistics were highlighted during the Philippine–American War of 1899–1902, when reports from U.S. Army officers were received regarding the .38 bullet's inability to stop charges of frenzied Moro juramentados in the Moro Rebellion, even at extremely close ranges.

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