Abstract: A bolt body for a double barreled bolt action rifle comprises a pair of forwardly extending breach bolts; a central body portion, from which the breach bolts extend; and a rear portion of the bolt body, housing a pair of cocking pieces. The rear portion has intersecting vertical and horizontal slots formed therein, defining a cruciform track in which the cocking pieces can travel. Each cocking piece has a vertical portion accommodated in said vertical slot and a horizontal portion in said horizontal slot.

Abstract: A bolt body for a double barreled bolt action rifle comprises a pair of forwardly extending breach bolts; a central body portion, from which the breach bolts extend; and a rear portion of the bolt body, housing a pair of cocking pieces. The rear portion has intersecting vertical and horizontal slots formed therein, defining a cruciform track in which the cocking pieces can travel. Each cocking piece has a vertical portion accommodated in said vertical slot and a horizontal portion in said horizontal slot.

Abstract: A self-aligning gear train of enhanced load transmitting capacity comprises a pair of cylindrical gear wheels having intermeshing teeth with concavo-convex side surfaces. The opposed, peripheral surfaces of the intermeshing cylindrical gear wheels are square providing increased surface contact between meshing gear teeth from the base to the edges of the teeth with the convex tooth surface of one gear engaging a concave tooth surface of the other gear to provide self alignment of one cylindrical wheel with the other.