Abstract: A case for holding an open magazine, or the like, is disclosed comprising a base and cover pivotally attached thereto. The base includes a horizontal flat bottom member of adequate size to support a magazine with the magazine opened to the desired pages. The bottom member is formed with upwardly extending front, rear and opposite side walls, at least the front and opposite side walls of which are of sufficiently low height to avoid interfering with turning and viewing of the magazine pages. A cover is pivotally attached to the case and is movable between open and closed positions. The cover is of a larger size than the base and includes a projecting portion which extends outwardly beyond the base in the closed cover position. The cover includes a flat top member formed with downwardly extending front and opposite side flanges of greater height than the front and opposite walls of the base.

Abstract: A round detecting method and apparatus are disclosed for automatically detecting the firing of weapons, such as small arms, or the like. Radiant and acoustic energy produced upon occurrence of the firing of the weapon and emanating from the muzzle thereof are detected at known, substantially fixed, distances therefrom. Directionally sensitive radiant and acoustic energy transducer means directed toward the muzzle to receive the radiation and acoustic pressure waves therefrom may be located adjacent each other for convenience. In any case, the distances from the transducers to the muzzle, and the different propagation velocities of the radiant and acoustic waves are known. The detected radiant (e.g.