Interior Ballistics Here

Several variables determine how effectively a projectile is launched:

Modern ballistics relies on computer simulations to predict performance without expensive and dangerous live-fire testing: Interior ballistics

: From the strike of the firing pin to the moment the propellant is fully ignited and pressure begins to build. Several variables determine how effectively a projectile is

: Must be high enough for velocity but below the "burst limit" of the barrel. or perforated cylinders).

: Controlled by the chemical composition and the geometry of the grains (e.g., tubes, balls, or perforated cylinders).