2mm Kolibri

2.7mm Kolibri
2mm Kolibri cartridge dimensions
TypeCenterfire ammunition
Place of originAustria-Hungary
Production history
DesignerFranz Pfannl
Designed1914
ManufacturerKolibri
Produced1914
No. built~1000 (pistol)[1]
Specifications
Case typeRimless, straight
Bullet diameter2.7 mm (0.11 in)
Neck diameter3.5 mm (0.14 in)
Base diameter3.6 mm (0.14 in)
Rim diameter3.6 mm (0.14 in)
Case length9.4 mm (0.37 in)
Overall length11 mm (0.43 in)
Ballistic performance
Bullet mass/type Velocity Energy
0.2 g (3 gr) FMJ 200 m/s (660 ft/s) 4 J (3.0 ft⋅lbf)
Source(s): Cartridges of the World [2]

The 2mm Kolibri (also known as the 2.7mm Kolibri Car Pistol or 2.7×9mm Kolibri) was the smallest commercially available centerfire cartridge,[3] patented in 1910 and introduced in 1914 by Franz Pfannl, an Austrian watchmaker, with financial support from Georg Grabner. It was designed to accompany the Kolibri semi-auto pistol or single-shot pistol, both marketed as self-defense weapons, but somewhat underpowered.

The name is derived from Kolibri, the German word for hummingbird, which is among the smallest of birds.

  1. ^ Cite error: The named reference pm2017 was invoked but never defined (see the help page).
  2. ^ Cartridges of the World 11th Edition, Book by Frank C. Barnes, Edited by Stan Skinner, Gun Digest Books, 2006, ISBN 0-89689-297-2 pp. 315, 530
  3. ^ Barnes, Frank C. Cartridges of the World. DBI Books, 1976, p.146