10.4mm Swiss Centerfire

10.4mm Swiss Centerfire
Type	revolver
Service history
In service	1878-1882
Used by	Swiss Army
Production history
Designer	Lieutenant-Colonel Rudolf Schmidt
Designed	1878
Specifications
Parent case	10.4×18mm Swiss Rimfire
Case type	Rimmed, straight
Bullet diameter	10.76 mm (0.424 in)
Neck diameter	10.8 mm (0.43 in)
Base diameter	11.2 mm (0.44 in)
Rim diameter	13.3 mm (0.52 in)
Rim thickness	1.1 mm (0.043 in)
Case length	20 mm (0.79 in)
Overall length	32 mm (1.3 in)
Ballistic performance
Bullet mass/type Velocity Energy 12.5 g (193 gr) lead 1 g of black powder 185 m/s (610 ft/s) 213 J (157 ft⋅lbf)

The 10.4mm Swiss centerfire / 10.4x20mmR revolver cartridge was used in the Ordnance Revolver models 1872/78 and 1878 of the Swiss Army.^[1] The case is of brass; the bullet is of hardened lead.

• List of rimmed cartridges

Media related to 10.4 x 20 mm R at Wikimedia Commons

• This entry is derived from the reading of the following specialized French-language magazines:
  • Cibles (Fr)
  • AMI (B, discontinued in 1988)
  • Gazette des armes (Fr)
  • Action Guns (Fr)