A method for forming a threaded neck on a neck portion of a metallic bottle, comprising: providing a metallic bottle, said metallic bottle comprising a bottom dome portion, a body portion, said neck portion extending upwardly from said body portion, and an opening positioned on an uppermost portion of said neck portion, wherein said neck portion is adapted to receive a threaded outsert that comprises a hollow cylindrical body portion having a minimum interior diameter large enough for the threaded outsert to be placed on the neck of the metallic bottle; performing a series of die necking operations on the body portion to reduce the diameter of the body portion to form the neck portion with a predetermined shape and exterior diameter and to form a retention bead on said neck portion of said metallic bottle, a diameter of the retention bead - being larger than the minimum interior diameter of the hollow cylindrical body portion, and - being larger than an exterior diameter of a first section of said neck portion extending above an upward-facing surface of said retention bead, and - being larger than an exterior diameter of a second section of said neck portion extending between a downward-facing surface of said retention bead and a sidewall portion of said body portion; forming the threaded outsert from injection molded plastic material, said threaded outsert comprising threads integrally formed on an exterior surface portion of said hollow cylindrical body portion, wherein said threads have a predetermined geometry adapted to receive a twist-off crown cap, wherein said hollow cylindrical body portion has a minimum interior diameter of less than 2,413 cm (0.95 inches), and wherein said threaded outsert has a height of between 0,762 cm (0.30 inches) and 1,524 cm (0.60 inches); placing said threaded outsert over said first section of said neck portion of said metallic bottle, wherein said threaded outsert is positioned above said retention bead of said neck portion and said retention bead retains said threaded outsert in a predetermined position on said first section of said neck portion of said metallic bottle; and expanding said uppermost portion of said first section of said neck portion above said threaded outsert to form a curl, wherein said threaded outsert is interconnected to said first section of said neck portion of said metallic bottle. providing a metallic bottle, said metallic bottle comprising a bottom dome portion, a body portion, said neck portion extending upwardly from said body portion, and an opening positioned on an uppermost portion of said neck portion, wherein said neck portion is adapted to receive a threaded outsert that comprises a hollow cylindrical body portion having a minimum interior diameter large enough for the threaded outsert to be placed on the neck of the metallic bottle; performing a series of die necking operations on the body portion to reduce the diameter of the body portion to form the neck portion with a predetermined shape and exterior diameter and to form a retention bead on said neck portion of said metallic bottle, a diameter of the retention bead - being larger than the minimum interior diameter of the hollow cylindrical body portion, and - being larger than an exterior diameter of a first section of said neck portion extending above an upward-facing surface of said retention bead, and - being larger than an exterior diameter of a second section of said neck portion extending between a downward-facing surface of said retention bead and a sidewall portion of said body portion; - being larger than the minimum interior diameter of the hollow cylindrical body portion, and - being larger than an exterior diameter of a first section of said neck portion extending above an upward-facing surface of said retention bead, and - being larger than an exterior diameter of a second section of said neck portion extending between a downward-facing surface of said retention bead and a sidewall portion of said body portion; forming the threaded outsert from injection molded plastic material, said threaded outsert comprising threads integrally formed on an exterior surface portion of said hollow cylindrical body portion, wherein said threads have a predetermined geometry adapted to receive a twist-off crown cap, wherein said hollow cylindrical body portion has a minimum interior diameter of less than 2,413 cm (0.95 inches), and wherein said threaded outsert has a height of between 0,762 cm (0.30 inches) and 1,524 cm (0.60 inches); placing said threaded outsert over said first section of said neck portion of said metallic bottle, wherein said threaded outsert is positioned above said retention bead of said neck portion and said retention bead retains said threaded outsert in a predetermined position on said first section of said neck portion of said metallic bottle; and expanding said uppermost portion of said first section of said neck portion above said threaded outsert to form a curl, wherein said threaded outsert is interconnected to said first section of said neck portion of said metallic bottle.