ТМ-1-180 railway gun at Krasnaya Gorka military museum. ТМ-1-180 is a railway artillery system manufactured by the USSR, developed on the basis of the powerful naval 180-mm gun B-1-P. Actively and successfully used in World War II. Krasnaya Gorka (meaning "red hill") is a coastal artillery fortress west of Lomonosov (Saint Petersburg) on the southern shore of the Gulf of Finland, opposite Kotlin Island and the Baltic Fleet's base at Kronstadt. There is a unique museum of II World War here today.