Cases maintain exact tolerances over multiple reloading cycles. Cases maintain shape between reloads and prevent jamming in cartridge chamber. Necks of cases are absolutely symmetric and annealed. Bluish color is a Lapua trademark. Mouth and neck will not crack even in multiple reloading.
For decades Lapua has concentrated in developing components and production machinery for target shooting cartridges. This determination has created the legendary quality sport shooting cases. They have been measured and manufactured to be strong and uniformly precise. Lapua cases are manufactured to be reloaded, again and again, dozens of times. Accepts boxer primers. New, unprimed brass. This is not loaded ammunition.