The 558 and 557 guns are technically the same. It's unknown why the German army designated two different type numbers. 11 guns were captured. In order to fire in 360 degrees there was a mechanisme that was mounted central on the tracks. The gun was bolted to this extra support. Made by Saint Chamond.
|Caliber||Barrel length||Gun weight||Shell weight||Rate of fire||Max range|
|24 cm||10 m||141 tons||162 kg||2 per 3 minutes||23.8 km|