How could 40 mm guns counter a drone-bomblet swarm?

How could a 40 mm close-defence system deal with a swarm of very small drone-delivered bomblets?

Destroy the launcher before release, or use programmed 40 mm bursts to create a fragmentation wall that breaks up the bomblets.

A viewer asks how a proposed 40 mm close-defence system could handle a swarm of very small drone-delivered bomblets. Two possible responses follow: destroy the launcher before it releases the submunitions, or program 40 mm rounds to burst into a fragmentation wall in their path. These are conceptual options rather than combat evidence or a historical performance claim. The exchange distinguishes attacking the carrier before release from defeating dispersed threats in the terminal phase and explains why programmable ammunition matters to the proposal.