German artillery bunkers and emplacement for 380 mm naval gun known as 'Langer Max'. Schnelladekanone L-Lange 38cm SKL/45 were naval guns for Bayern class battleships, used as heavy land artillery on the Western Front. Gun spec: * Weight 80 Metric Tons * Length 17.10 m * Bore length 16.1 m * Caliber 38 cm * Shell Weight 750 kg standard , 400 kg coastal artillery for extra range * Range 23,000 m in ship bourne mounting (20 degrees elevation), 38,000 m coastal mounting 45 degrees, 47,000 m coastal mounting with 'light' shell * Rate of fire 2.5 rpm