.357 Magnum Round

.357 magnum round is a type of ammunition in Fallout: New Vegas.

Characteristics
A .357 caliber bullet, manufactured by Big Chief, has a significant powder charge making it a very powerful cartridge for a pistol round.

Weapons using this ammunition

 * Cowboy repeater
 * .357 magnum revolver
 * La Longue Carabine
 * Police pistol
 * Lucky

.357 magnum, hollow point
Hollow point bullets are designed to mushroom out expanding up to 5 times their original size resulting in a jagged, gory wound much larger than the actual round. Hollow points lack the penetrating power to punch through denser materials however due to the fact that their force is distributed over a larger area drastically reducing the weapon's penetrating power. For that same reason, they are excellent at turning internal organs to mush.

.357 magnum, JFP (hand load)
JFPs or jacketed flat points are blunt, copper-wrapped bullets designed to flatten on impact like a hollow point, but retain the penetrating power of a copper-jacket slug. As such, they inflict greater damage, penetrate enemy armor better, and even fly straighter than normal .357 rounds.

.38 special round
.38 Special rounds are a slightly smaller class of bullet than .357 Magnums. They can be fired from .357 weapons because the .357 Magnum was developed from the .38 Special round. Though the reduction in powder means less damage inflicted on the target, it also means less wear and tear per shot on the gun.