6.45x48mm XPL Swiss
Type Rifle
Place of origin 20x16px Switzerland
Production history
Designer Swiss Army
Designed 1979-1980
Parent case 7.62×51mm NATO
Bullet diameter 6.65 mm (Bad rounding hereScript error in)
Neck diameter 7.56 mm (Bad rounding hereScript error in)
Shoulder diameter 10.95 mm (Bad rounding hereScript error in)
Base diameter 11.82 mm (Bad rounding hereScript error in)
Rim diameter 11.81 mm (Bad rounding hereScript error in)
Rim thickness 1.55 mm (Bad rounding hereScript error in)
Case length 47.72 mm (Bad rounding hereScript error in)
Overall length 65.06 mm (Bad rounding hereScript error in)
Ballistic performance
Bullet weight/type Velocity Energy
6.3 g (Bad rounding hereScript error gr) 900 m/s (Bad rounding hereScript error ft/s)2,550 J (Bad rounding hereScript error ft·lbf)

6.45x48mm XPL Swiss (or 6.45x48 GP 80) is an experimental intermediate rifle cartridge that was developed in conjunction with the SIG SG 550 rifle as a potential successor to the 7.5×55mm Schmidt Rubin cartridge.[1] 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.[2] 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 cartridge was not adopted, the SIG SG-550 went into production with the 5.6×45mm GP 90 round.


Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.