6.45×48mm XPL Swiss

Swiss experimental rifle cartridge

6.45x48mm XPL Swiss

Type

Rifle

Place of origin

Switzerland

Production history

Designer

Swiss Army

Designed

1979-1980

Specifications

Parent case

7.62×51mm NATO

Case type

Rimless, bottleneck

Bullet diameter

6.65 mm (0.262 in)

Neck diameter

7.56 mm (0.298 in)

Shoulder diameter

10.95 mm (0.431 in)

Base diameter

11.82 mm (0.465 in)

Rim diameter

11.81 mm (0.465 in)

Rim thickness

1.55 mm (0.061 in)

Case length

47.72 mm (1.879 in)

Overall length

65.06 mm (2.561 in)

Ballistic performance

Bullet mass/type	Velocity	Energy
6.3 g (97 gr)	900 m/s (3,000 ft/s)	2,550 J (1,880 ft⋅lbf)

Source(s): quarryhs.co.uk^[1]

6.45×48mm XPL Swiss (or 6.45×48 GP 80) is an experimental intermediate rifle cartridge.

Development

It was developed in conjunction with the SIG SG 550 rifle, as a potential successor to the 7.5×55mm Schmidt–Rubin cartridge.^[1]

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.^[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 97 gr (6.3 g) bullet was fired at a muzzle velocity of 900 m/s (3,000 ft/s) with 2,550 J (1,880 ft⋅lb) of muzzle energy.

Production

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

Weapons using the 6.45mm cartridge

The C42 by Waffenfabrik Bern (Rifle version)
The C42 by Waffenfabrik Bern (Carbine version)
The SIG 541 (Carbine version)

References

^ ^a ^b "Assault Rifles and Their Ammunition". Archived from the original on 2017-11-05. Retrieved 2014-11-19.
^ "6.45x48 XPL Swiss / MUNICION.ORG". Archived from the original on 2014-11-29. Retrieved 2013-02-11.

Cartridges derived from the .30-03 Springfield

Prototype

.30-01 Thick-Rim

First generation

Based on .30-03 Springfield	.30-06 Springfield

Second generation

Based on .30-06 Springfield	.250 Savage .25-06 Remington 6.5-06 A-Square .270 Winchester .280 Remington .30-06 JDJ .338-06 .35 Whelen .400 Whelen .44 AMP .50 BMG wildcat cartridges

Third generation

Based on .250 Savage	.22-250 Remington 6 mm XC .250 Ackley Improved .300 Savage
Based on .280 Remington	.280 Ackley Improved
Based on .50 BMG	.416 Barrett .460 Steyr .510 DTC EUROP .55 Boys 14.5mm JDJ

Fourth generation

Based on .300 Savage	.308 Winchester/7.62×51mm NATO
Based on .22-250 Remington	.22-250 Ackley Improved

Fifth generation

Based on .308 Winchester	.243 Winchester 6.45×48mm XPL Swiss .260 Remington 7mm-08 Remington .307 Winchester .308×1.5-inch Barnes 7.62×51mm CETME .338 Federal .358 Winchester .45 Raptor

Sixth generation

Based on .243 Winchester	.243 Ackley Improved
Based on .307 Winchester	.356 Winchester .308 Marlin Express
Based on .308×1.5-inch Barnes	.22 BR Remington 6mm BR .30 BR