6.45×48mm XPL Swiss
6.45×48mm XPL Swiss is an experimental intermediate rifle cartridge.
Development
It was developed as part of the WEIZE trials in conjunction with the SIG SG 550 rifle, as a potential successor to the 7.5×55mm Schmidt–Rubin cartridge.Description
The rimless cartridge has a base diameter of 11.82 mm and a case length of 47.72 mm.The bullet is an unusual 6.65 mm diameter, fractionally smaller than the common 6.5 mm bullet.
The bullet was fired at a muzzle velocity of with of muzzle energy.