gun notes for ian

Basic Parts of the Gun

Hammer (where you manually cock or load the firearm as active)

Trigger (where you click it to fire the weapon)

Breech (located in front of the hammer)

Chamber (where the bullets are contained)

Barrel/Bore (muzzle of the firearm where the bullet shoots out from)



Firearm Types

Handguns

Pistols

Revolvers

Long guns

Rifles

Shotguns



Handguns

Are compact weapons that can be fired typically with one hand

Delivers multiple shots without reloading

Shorter barrels to be easily concealed

Barrels have riffling



Revolver

Defined as a projectile weapon of a pistol type, having a breech loading chambered cylinder so arranged that cocking the hammer or movement of the trigger rotates it and brings the next cartridge in line with the barrel for firing

Cartridge cases remain in the cylinder after firing

Fired cartridge cases will be found at the crime scene only if the perpetrator reloaded or emptied the cylinder for some reason and failed to collect them

Advantages:

Cost depends on brand (less expensive than pistols on average)

Simpler to operate and easier to use

More reliable (less moving parts)

Accuracy depends on manufacturing and materials

Disadvantages:

Generally limited to 6 shots

Takes more time to reload

Requires a more forceful trigger pull than semiautomatics



Types of Revolvers

Single-action models: hammer must be cocked before each shot (must cock the hammer each time to fire)

Double action model: trigger pulls the hammer back (trigger does all the work)



Internal Hammer = usually double action

External Hammer = usually single action



Pistol

A weapon orginally designed, made, and intended to fire a bullet from one or more barrels when held in one hand and having:

A chamber(s) is permanently aligned with the bore

A short stock designed to be gripped by one hand at an angle to and extending below the line of the bore

Makes use of the recoil generated by the fired cartridge to operate the action, which ejects the empty cartridge case, loads the next cartridge, and cocks the hammer

Advantages:

Ejects cartridge casings

Designed to carry around 15-19 rounds (depending on the magazine size_

Disadvantages:

More complicated mechanisms than revolvers

Prone to jam

Require more practice to use effectively

Smaller and less powerful