6.45x48mm XPL Swiss (or 6.45x48 GP 80) is an experimental intermediate rifle cartridge.

Development

It was developed in conjunction with the

SIG SG 550 The SG 550 is an assault rifle manufactured by Swiss Arms AG (formerly a division of Schweizerische Industrie Gesellschaft, now known as SIG Holding AG) in Switzerland. "SG" is an abbreviation for ''Sturmgewehr'' ("assault rifle"). The rifle ...

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 (similar to the 7.62×51mm NATO) and a case length of 47.72 mm. The bullet is an unusual 6.65 mm diameter (6.45mm refers to the bore diameter), fractionally smaller than the common 6.5 mm (bore diameter) bullet. The bullet was fired at a muzzle velocity of with of muzzle energy.

Production

The cartridge was not adopted, the SIG SG-550 went into production with the 5.6×45mm GP 90 round.

References

Pistol and rifle cartridges Experimental cartridges {{ammo-stub