Would twin 76 mm mounts improve air defence?

Could twin 57 mm or 76 mm rapid-fire mounts offer a useful naval air-defence improvement?

They could produce a powerful volume of fire, but they are uncommon in service and would be a substantial, specialised fit rather than a routine replacement.

Most contemporary Western medium-calibre mounts are single, though older and proposed twin arrangements exist. The OTO Melara 76 mm Super Rapid has a rate of fire and ammunition variety that make a twin mounting attractive for air defence. Doubling the guns could create formidable fire volume, but it would also require a larger and more demanding installation. The discussion therefore distinguishes an interesting design proposal from a completed operational solution.