Oh well soon enough we’ll have directed energy weapons and drones with hypodermic needles. Maybe someday bullets will be obsolete.

They should just require all ammunition to have serial numbers etched into the casing and the slug. When ammo is purchased, it is attached to an ID. People keep their ammo locked up to avoid being framed. People can shoot the ammo with any homemade contraption they want. Problem solved - until people learn to make their own ammo. Obviously possible for shotgun shells, but maybe not feasible for accurate rifling bullets.

Fox did make it into the Mario Galaxy movie. Maybe they have plans…