148 citations · 467 across the 44 of their papers we have counts for
12 papers · 1 filter
Effects of Sound Suppressors on Muzzle Velocity, Bullet Yaw, and Drag
Elya Courtney, Roy Couvillion, Amy Courtney +1
Little has been published regarding whether and how sound suppressors impact bullet flight, including velocity, bullet yaw, and drag. These parameters were compared for four differ…
Terminal Performance of Lead-Free Pistol Bullets in Ballistic Gelatin Using Retarding Force Analysis from High Speed Video
Elijah Courtney, Amy Courtney, Lubov Andrusiv +1
Due to concerns about environmental and industrial hazards of lead, a number of military, law enforcement, and wildlife management agencies are giving careful consideration to lead…
Experimental Tests of the Proportionality of Aerodynamic Drag to Air Density for Supersonic Projectiles
Elya Courtney, Amy Courtney, Michael Courtney
Pure theory recognizes the dependence of supersonic drag coefficients on both Mach number and Reynolds number, which includes an implicit dependence of drag coefficient on air dens…
Comparing Terminal Performance of .357 SIG and 9mm Bullets in Ballistic Gelatin Using Retarding Force Analysis from High Speed Video
Elizabeth Keys, Amy Courtney, Michael Courtney
High-speed video has emerged as an valuable tool for quantifying bullet performance in ballistic gelatin. This paper presents the results of testing four .357 SIG bullets using hig…
Methods for Accurate Free Flight Measurement of Drag Coefficients
Elya Courtney, Amy Courtney, Michael Courtney
This paper describes experimental methods for free flight measurement of drag coefficients to an accuracy of approximately 1%. There are two main methods of determining free flight…
Shock Tube Design for High Intensity Blast Waves for Laboratory Testing of Armor and Combat Materiel
Elijah Courtney, Amy Courtney, Michael Courtney
Shock tubes create simulated blast waves which can be directed and measured to study blast wave effects under laboratory conditions. It is desirable to increase available peak pres…