This high-speed video captures the ejection of a gun shell at 3,000 frames per second using the i-SPEED 7 high-speed camera with a resolution of 2072x1536 and an exposure time of 333µs. High-speed video analysis of weapon mechanisms, such as shell ejection, is essential for understanding potential jamming issues and improving weapon longevity and reliability. i-SPEED cameras are also utilized to study the effects of weapon kinematics on users, including hand fatigue, enhancing overall performance and safety.