Trigger and firing mechanism for bolt action rifle

In a bolt action type firearm, in which the barrel of the firearm is attached to a receiver and a bolt is received in a bore in the receiver, an improved firing mechanism comprising

• a longitudinal bore within the bolt extending from the head end of the bolt;
• an elongate firing pin positioned in said longitudinal bore, with the forward end of the pin adapated to project from the forward end of the bolt to strike the end of a cartridge in the firing chamber of the firearm when the bolt is in its closed position, and with the rear end of the firing pin positioned near the innermost end of the longitudinal bore in said bolt;
• a cammed notch in the bolt extending inwardly from a longitudinal side of the bolt and intersecting the innermost end of the longitudinal bore in said bolt;
• an opening in the receiver adapted to be in alignment with the cammed notch in the bolt when the bolt is in its closed position;
• an elongate spring-biased puncher having a recess in its side surface, said puncher being adapted to move lengthwise within the opening from a cocked position in which the lead end of the puncher is substantially withdrawn from the cammed notch to a fired position in which the lead end of the puncher enters into the cammed notch in the bolt so as to strike the rear end of the firing pin, with said cammed surface on the cammed notch being adapted to push the puncher from the cammed notch in the bolt to the puncher's cocked position during movement of the bolt to extract a spent shell casing from the firearm;
• trigger means having a sear pin thereon adapted to engage the recess in the spring-loaded puncher when the puncher is moved into its cocked position, whereby the puncher is retained in its cocked position until the trigger is pulled so as to move the sear pin from the recess in said puncher, whereupon the puncher moves into the cammed notch in the bolt and strikes the firing pin and the firing pin is, in turn, forced forward so as to strike the end of the cartridge in the firing chamber of the firearm.