- Most aspects of the firearm are based on the ammunition it is designed to fire. Understanding ammunition makes understanding firearms easier.
Ammunition is a package of these parts:
- the container (the casing),
- the projectile (the bullet),
- the propellant (gunpowder),
- the ignition source (the primer).
Each of those parts has many aspects:
- the casing shape, thickness, weight, and material;
- the bullet length, diameter, casing material, and shape;
- the gunpowder amount and burn rate;
- the primer type.
Itís the combination of those aspects make the unique behavior of each kind of ammunition:
- the speed of the bullet as it exits the barrel,
- the force of the bullet when it hits its target,
- the amount of energy that it transferred from the bullet to the target as it passes through the target.