21 retains the part 15 against relative longitudinal displacement while at the same time permitting axial rotation of the part 15 within the annular bearing surface provided by the flange or collar 21 the part 15 can be of any desired symmetry or shape but is here shown as consisting of two opposed cones 23 and 24 separated by the annular groove 22 the rearward cone 24 terminates in an apex or point 25 which is pivotally accomodated in a conical depression or recess 26 central of the closed end 19 of part 14 this arrangement provides a supplementary stabilizing point for the axial rotation of the portion 15 the forward cone 23 has a forward apex or peak 27 from which its surface 28 diverges conically rearwardly toward the groove 22 depending on the desired shape of the part 23 there could be one or more of such diverging surfaces a conventional cleaning pellet or slug not shown sized to snugly fit the bore to be cleaned and conventionally made of compressible felted or matted fibrous material is used for the actual cleaning operation the cleaning pellet is placed in the breech end of the gun ahead of the cleaning rod or implement 10 the pointed pusher piece 13 is then used to start the slug into the bore the tubular body bends easily to accomodate to the entry angle required for insertion into the breech end of the gun the body 11 of the cleaning rod is grasped with one hand closely adjacent to its entry point into the bore as it is slowly pushed into the gun barrel at the same time.