Interesting but I don't think that's sustained fire. You see crazy him rpm for firearms. The rate of fire is restricted by the magazine size (ship guns do have

Interesting but I don't think that's sustained fire. You see crazy him rpm for firearms. The rate of fire is restricted by the magazine size (ship guns do have magazines) and how fast the gun can cool. The US Army changed the barrel of the M4 Carbine (automatic rifle) after some troops during a sustained defense of some hill had barrels failing after glowing white hot. Machine guns often have barrels that can be replaced during prolonged engagements. A hot naval gun could detonate the charge if it overheats. It has happened although I don't remember how long ago.