Letter Re: Securing Windows With Plywood The Fast And Easy Way
Dear Jim: To follow up on the recent letters, we supply roughly half inch thick ballistic steel to stop .30-06 AP threats. (NIJ Level IV ). The tradeoff is that you are looking at roughly double the weight — 20 lbs. per square foot. So for the hypothetical 36″ by 36″ piece it adds up to roughly 180 lbs. Ceramic tile can provide AP or Level IV protection at less than half that weight – but much more expensive. Your point about spall is well taken. I would worry most about the bullet splatter or ricochet from a round plastering …