automatic weapon swinging chamber for firing telescoped cylindrical ammunition.

An automatic weapon for firing telescoped cylindrical ammunition, comprising a sleeve (12) for supporting a tube (10), a yoke (16) and a rear box (38) which are rigidly connected together by beams with a chamber (20) arranged between the yoke (16) and the tube (10) and pivotally mounted by pivoting about an eccentric shaft (22), and means (28, 32, 34) carried by the yoke ( 16) and the rear box (38) for supplying the ammunition chamber.