To update this post.
I was looking around Google and came across this post.
It seems most of the 'Exotic' ammo mentioned before now comes through a company called Firequest.
As to Titanium alloy shot.
Web searching generally agrees that titanium would be almost useless as shot being that it is lighter than steel.
All seem to point to Tungsten alloy 'Hevi-shot'
Various 'bird bomb' cartridges bangers, screamers, sparkers are available from
These unfortunatly are 15mm tubes that are fired from a flare gun type launcher and activated with a 6mm or 9mm blank.
Further looking shows a 12 ga cracker round. Loud bang at 200' travel