CRIMINAL INVESTIGATIONS. AMMUNITION/ BALLISTICS. AMMUNITION. Cartridge Structure Cartridge Case Primer Head Propellant Bullet Blanks- No Bullet. Metal Jacket. Ammunition. AMMUNITION. Cartridge Cases Made of Brass 30% Copper 30% Zinc Aluminum Brass, Plastic and Paper for shotguns.
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Smooth bore: Shotguns.
Not smooth bore: rifles, pistols.
The holder presses the firing pin which in turn strikes the primer which ignites the powder and produces large amount of hot gas.
Produces very high pressure that fires the bullet forcefully through the barrel leaving the muzzle, and onto the target.
Bullets do not typically follow a straight line to the target. Rotational forces are in effect that keep the bullet off a straight axis of flight.
-Slow velocity (<340 m/s) speed of sound in air or less
-High velocity (1500 m/s) faster!
Movement through body