Apparatus for removing dud

An apparatus for removing a dud, provided with a forward driving means providing a propulsive force for forwarding the apparatus along an inner surface of a gun barrel, the apparatus comprising:

• a press driving part directly connected to the forward driving means and having a built-in motor to provide a rotating force;
• a sticking means connected to the press driving part and extended to an outside to be tightly stuck on the inner surface of the gun barrel by a main shaft being rotated by the motor;
• and
• a pushing part having one end part connected to the sticking means and the other end part coupled to a cap for contracting with the dud, and pushing the cap through a forward movement of the main shaft after the sticking on the inner surface of the gun barrel is performed by the sticking means, wherein the main shaft is composed of a large end part and a small end part having different diameters and screw threads formed on their outer surfaces, and the large part is connected to an output shaft of the motor to make a rectilineal movement in a direction of the main shaft.