Used - Suhl Drilling gun, rifle barrel is 7.8x57 or (8x57) .318 size ammo. S.T.M.G. stamped for steel jacketed ammo. Both shotgun barrels are 16 gauge and choked. Barrels manufactured by Kelber Family and are RK and LK stamped. Gun made in August of 1932. Gun is Nitroproofed. Features Greener safety and Blitz action. Krupp steel barrels.