Had so much lead in two wall cabinets that they were pulling the cabinets aparts at the top and off the wall. Had to install angle braces along the outsides of two adjacent cabinets, then bolt the cabinets together in the middle.
Also tied the top to the wall. Fortunately my shop has plywood walls rather tha sheet rock.
Can't imagine the sound those falling cabinet might have made in the middle of the night. I bet a lot of reloaders have stessed their wall mounted cabinets with too many pounds of bullets.