Tiger's powerful but troublesome 6-inch guns

How good was the Tiger-class rapid-firing 6-inch gun?

It became effective after its jamming problems were solved, but that happened too late in the ships' careers.

The Tiger-class automatic 6-inch system combined exceptional potential with serious early jamming. On paper its high rate of fire made it one of NATO's most formidable large-calibre naval guns in the early Cold War. Engineers eventually resolved the reliability problems and proved that the concept could work. The achievement came too late to transform the class because the cruisers were nearing the end of their useful careers when the mount matured.