System for communicating data to a detonating fuse of a firearm

System for communicating data to a detonating fuse of a projectile of a firearm, for sending said data to a processing unit inserted in said detonating fuse, said projectile being under-calibre with respect to the size of the barrel, for which inserting the projectile correctly into the barrel, said system comprising:

• a cap and an adaptor formed by the cap, the cap fitting on the projectile, having an external diameter substantially corresponding to that of the barrel,
• electrically conductive elements provided on the detonating fuse and on the cap for connection between the elements, to create an electrically conductive path from a central electronic unit, which controls the firearm, to said processing unit on the detonating fuse;
• wherein said electrically conductive elements comprise:
• a plurality of electrical contacts positioned on a lateral surface of the cap, the contacts creating electrical continuity from the outside to the inside of the cap;
• a connector on the detonating fuse, the connector electrically connecting the processing unit within the detonating fuse with the outside of the cap;
• and
• an electronic connection board, set between the connector and the contacts, the board being positioned within the cap, in a position to provide engagement of a plurality of conductive paths provided thereon with the contacts of the cap and to enable insertion of a pin into the connector of the detonating fuse.