Hail and Bullets David B. South takes aim at a dome with his .30-06 rifle during a bulletproof demonstration for a Dallas TV station in the late ’90s. Monolithic Dome school building at Texhoma Independent School district shortly after construction. Marks from bullet test. Five guns were fired at close range with calibers from .22 to .30-06. No penetration or damage is evident on the concrete interior after five close-range shots (aimed at area left of outlets). The layers of the Airform membrane, polyurethane foam and concrete typically deflect and capture bullets fired at a Monolithic Dome.