Comparison of the Exterior Ballistics of the M-193 Projectile when Launched from 1:12 In. and 1:14 In. Twist M16A1 Rifles.

摘要

The results of an exterior ballistics test of the M193 ball projectile when launched from the M16A1 rifle are presented and discussed. Rifles with twists of 1 turn in 12 inches and 1 turn in 14 inches were used in the tests. Data were gathered from test firings at the small Aerodynamics Range and the Transonic Range of the Ballistic Research Laboratories and from a temporary range set up in the Climatic Hangar at the Eglin Air Force Base, Florida. Tests at Eglin were conducted at air temperatures ranging from +125 deg. F to -65 deg. F. (Author)