Repeating cone-breech firearm system

A firearm bolt assembly, comprising:

• a cylindrically-shaped bolt body comprising a first end and a second end, with the second end comprising a tapered breech block face;
• a first locking-lug extending radially outward from the cylindrically-shaped bolt body at the second end thereof and oriented at a first radial position along the circumference of the cylindrically-shaped bolt body;
• a second locking-lug extending radially outward from the cylindrically-shaped bolt body at the second end thereof and oriented at a second radial position along the circumference of the cylindrically-shaped bolt body;
• a circularly-shaped cartridge seat recessed into the tapered breech block face such that the tapered breech block face extends axially outward from the cartridge seat by a first distance corresponding to a first portion of the circumference of the circularly-shaped cartridge seat, the first portion being disposed between the first and second radial positions of the locking lugs on an upper region of the tapered breech block face;
• and
• a cartridge guide channel disposed within the tapered breech block face, the cartridge guide channel defining a portion of the tapered breech block face that extends axially outward from the cartridge seat by a second distance corresponding to a second portion of the circumference of the circularly-shaped cartridge seat, the second portion being disposed between the first and second radial positions of the locking lugs on an lower region of the tapered breech block face, wherein the second distance is less than the first distance.