How to determine hit collision

What is your collision setup for the meshes? Have you considered adding a box collision around your objects, those are usually easier to control/respond better than the mesh itself. Also, just so I am clear, you have 2 meshes a static one that sits in the world and a destructible one that I assume you spawn in when the static mesh is hit by the weapon yes? So you fire the weapon it hits the static mesh, you delete that mesh and spawn in the destructible type which breaks apart instantly? That works fine, BUT those events are also triggered by the player walking into the static mesh as well? If this is the case, show us the character collision settings and the mesh collision settings. Something is off with how those are set up.