British navy sailor fires burst using gun mounting system ASP (Agile, Small-deflection, Precision) armed with a .50 heavy machine gun. (Picture source British Royal Navy)

Navy Lookout has a post about .50 cal guns that goes into the history of the caliber in the Royal Navy, but the real news is that they have made the decision to completely replace the 7.62mm Mk44 (M134) mini gun, which as a rate of fire of 2,000 to 4,000 rounds per minute, with the .50 caliber effective March 2023.

The post makes reference to the 2021 tests of the “Agile, Small-deflection, Precision (ASP)” mounting on board HMS Argyll, but apparently there has been no decision regarding upgraded mounts for the gun.