A method of point shooting with a rifle was developed by Lucky McDaniel and taught by the US Army beginning in 1967. It was called "Quick Kill", and it was taught using an air rifle. The Quick Kill method was fully detailed in-step-by-step fashion in "Principles of Quick Kill". It was taught starting with a special Daisy BB gun that had no sights. The slow moving steel BB was visible in flight on sunny days, making it an inexpensive tracer round. The students began by firing at diameter metal disks thrown in the air slightly in front of the student and above the student's head. After an 80% hit rate is attained firing at these disks, the student is then presented with diameter disks. Once proficiency is attained with the aerial targets, it shows the student has mastered the fundamentals, and training moves on to stationary targets on the ground, first with the BB gun and then with a service rifle having its front and rear sights taped over.