Abstract: A glass syringe barrel is provided that has a bottom end and a top end with a cone region, a shoulder region, a body region, and a flange region therebetween. The glass syringe barrel is configured so that f(x) defines an absolute value of a vertical distance between any point of a first outer contour and a straight line fo at a position x, with f(x)=0 at point P1, wherein x is a horizontal distance between any given point on the straight line fo and point P0 at which the straight line fo crosses a line L1 that runs parallel to the longitudinal axis and that touches an outer surface of the body region, and a maximum value for the term f(x) in a range from x=P0 to x=P1 is f(x)max determined at position xmax.