Regarding firearm ammunition in the US, which of the following is - ProProfs
     

Regarding firearm ammunition in the US, which of the following is true?



A. Fully-jacketed rounds are the preferred munition of standard US law enforcement officers
B. The kinetic energy of a projectile is determined more by its given velocity rather than by its overall mass
C. The term "magnum", when applied to a firearm round, implies a larger caliber or diameter as compared to a standard "non-magnum" round
D. Handgun barrels are designed to impart a spin on the projectile as it exits the muzzle

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John Smith

John Smith

Answered on Sep 08, 2016

The kinetic energy of a projectile is determined more by its given velocity rather than by its overall mass-kinetic energy is proportional to the mass of an object multiplied by its velocity squared (ke = 1/2 mv^2), and therefore velocity is the key component to determining the ke of a given projectile. standard law enforcement officers use hollow-point rounds to limit any collateral damage to non-combatants. the term magnum refers to rounds that have larger casings and thereby contain more gunpowder which in turn imparts a greater velocity to the projectile. rifle barrels and not handguns are designed to impart a spin on the bullet as it exits to muzzle to improve its stability in flight and overall accuracy. (rosens 954-959)

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