Transitional ballistics
From Biocrawler, the free encyclopedia.
Transitional ballistics, also known as intermediate ballistics, is the study of a projectile's behavior from the time it leaves the muzzle until the pressure behind the projectile is equalized, so it lies between internal ballistics and external ballistics.
Transitional ballistics is a complex field that involves a number of variables that are not fully understood; therefore, it is not an exact science. What is understood is that when the projectile leaves the muzzle, it receives a slight increase in muzzle velocity from the escaping gases. Immediately after that, its muzzle velocity begins to decrease because of drag.

