Stands for Practical Pistol Course, a course of fire developed by the FBI that involves shooting at man-silhouettes from a variety of ranges and shooting positions. Shot competitively, usually by police. The custom heavy-barreled revolvers favored in these competitions are known as "PPC revolvers."
In the late ‘30s, in an effort to improve and make its firearms training more realistic, the FBI introduced the Practical Pistol Course (PPC). The course encompassed prone shooting at 60 yards, sitting and barricade positions at 50 yards, kneeling and barricade shooting at 25 yards, off-hand shooting at 15 yards and point shooting using the “FBI Crouch” at 7 yards. The course was timed to add an element of stress, and the targets were humanoid silhouettes instead of the traditional round bulls-eye.