A plated hallow point bullet has a metallic plating which completely encapsulates a metallic core. The method is to firstly calculate a shift of the first-eye image with respect to the second-eye image. Preferably, the apparatus is arranged such that movement of the tapered surface along a longitudinal axis in a first direction forces the said part to move radially outwardly to form the connection and movement of the tapered surface in the opposite direction along the longitudinal axis forces the said part to move radially inwardly to break the connection. Also, on the playing face of the effect indication card is provided an indicator for additional attack power.