A rigid, hinged-lid packet of smoking articles comprising: a group of articles; an inner container housing the group of articles; an outer container, which comprises an open top end, a bottom wall, a front wall, a rear wall, and two lateral walls, and houses the inner container in such a manner as to allow the inner container to move with respect to the outer container; a lid, which has a top wall, a front wall, a rear wall which is hinged to the rear wall of the outer container to allow the lid to rotate with respect to the outer container, and two lateral walls; and an actuating mechanism which moves the inner container with respect to the outer container using the rotational movement of the lid and comprises a connecting tab which connects a wall of the inner container to a wall (11; 13) of the lid; wherein the connecting tab comprises a rigid top panel which is integral with a wall (11; 13) of the lid; and a rigid bottom panel that on one side is directly hinged to a wall of the inner container and the other side is directly hinged to the top panel; the packet of cigarettes being characterized in that: the inner container is smaller than the outer container, so as to define, inside the outer container, a chamber adjoining the inner container; the top panel of the connecting tab is integral with the rear wall of the lid; the bottom panel of the connecting tab is directly hinged to the rear wall of the inner container; and the bottom and top panels (20, 21) of the connecting tab are designed so that, in the closed position the bottom panel presses against the rear wall of the inner container to elastically deform at least the rear wall of the inner container. a group of articles; an inner container housing the group of articles; an outer container, which comprises an open top end, a bottom wall, a front wall, a rear wall, and two lateral walls, and houses the inner container in such a manner as to allow the inner container to move with respect to the outer container; a lid, which has a top wall, a front wall, a rear wall which is hinged to the rear wall of the outer container to allow the lid to rotate with respect to the outer container, and two lateral walls; and an actuating mechanism which moves the inner container with respect to the outer container using the rotational movement of the lid and comprises a connecting tab which connects a wall of the inner container to a wall (11; 13) of the lid; wherein the connecting tab comprises a rigid top panel which is integral with a wall (11; 13) of the lid; and a rigid bottom panel that on one side is directly hinged to a wall of the inner container and the other side is directly hinged to the top panel; the packet of cigarettes being characterized in that: the inner container is smaller than the outer container, so as to define, inside the outer container, a chamber adjoining the inner container; the top panel of the connecting tab is integral with the rear wall of the lid; the bottom panel of the connecting tab is directly hinged to the rear wall of the inner container; and the bottom and top panels (20, 21) of the connecting tab are designed so that, in the closed position the bottom panel presses against the rear wall of the inner container to elastically deform at least the rear wall of the inner container. the inner container is smaller than the outer container, so as to define, inside the outer container, a chamber adjoining the inner container; the top panel of the connecting tab is integral with the rear wall of the lid; the bottom panel of the connecting tab is directly hinged to the rear wall of the inner container; and the bottom and top panels (20, 21) of the connecting tab are designed so that, in the closed position the bottom panel presses against the rear wall of the inner container to elastically deform at least the rear wall of the inner container.