4.25mm Liliput

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4.25mm Liliput
Type	Pistol
Place of origin	Austria-Hungary
Specifications
Case type	Rimless, straight
Bullet diameter	4.27 mm (0.168 in)
Neck diameter	5.00 mm (0.197 in)
Base diameter	5.00 mm (0.197 in)
Rim diameter	5.00 mm (0.197 in)
Case length	10.27 mm (0.404 in)
Overall length	14.91 mm (0.587 in)
Ballistic performance
Bullet mass/type Velocity Energy 12 gr (1 g) FMJ 810 ft/s (250 m/s) 17 ft⋅lbf (23 J)
Source(s): "Textbook of Automatic Pistols" [1]

The 4.25mm Liliput is a centerfire cartridge originally produced in Austria for self-loading pocket pistols made by Erika before World War I. In 1920 the Liliput pistol was designed by August Menz of Suhl to use the cartridge. The cartridge became best known by the Liliput name used on German ammunition after Austria ceased production. The cartridge headspaces on the mouth of the case. It was the smallest centerfire cartridge in production in the 1930s.^[1][2][3]

• List of cartridges by caliber

• Pictures of the 4.25mm Liliput cartridge, compared to the 2mm Kolibri rounds.

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