China's Navy Reportedly Developing World's Largest Naval Gun

In an era increasingly dominated by precision missiles and autonomous drones, China's People's Liberation Army Navy (PLAN) appears to be revisiting traditional naval firepower with the reported development of a new, large-caliber naval gun system. This system is said to utilize 155mm artillery shells, which would make it the largest naval gun currently in development worldwide.

The weapon system has recently been sighted undergoing sea-based performance testing aboard an experimental warship. This suggests the technology is progressing towards potential deployment. The vessel, identified as the 6,000-tonne experimental ship Wu Yunduo, was observed heading towards waters near Dalian in early May and returned approximately two weeks later, according to social media reports from China.

Sea trials for such a main gun typically involve live-fire exercises. These tests are crucial for evaluating the platform's stability, the accuracy of its fire control systems, and its reliability during continuous firing under various operational conditions. Images circulated online in February showed the experimental vessel docked at the Liaonan Shipyard in Dalian, Liaoning province, with the substantial gun mounted on its bow, fueling speculation about its capabilities and intended role.