A removable inspection panel for use with a projectile containment assembly in a shoot house or on a firing range where the firing of live ammunition is carried out is provided. The inspection panel is removably attached to a supporting structure between the supporting structure and a projectile containment assembly. The inspection panel is removable from the top of the supporting structure, for example, for periodic inspection of the condition of the inspection panel. Any detectable damage to the surface of the inspection panel facing the projectile containment assembly indicates immanent failure of the projectile containment assembly.