2 mm Kolibri

The 2mm Kolibri was the smallest commercially available centerfire cartridge, 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.

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1914  Wikimedia, Wikidata
pistol cartridge, Austria–Hungary, 

.38/.45 Clerke, .451 Detonics Magnum, .475 Wildey Magnum, .50 Action Express, .50 GI, 10.6×25mmR, 11.35mm Schouboe, 6.5mm Bergmann, 6.5×25mm, 7,65×25 Mannlicher, 7.65×21mm Mannlicher, 8.5mm Mars, 8mm Roth-Steyr, 9mm Mars, 9×23mm Largo, 9×25mm Dillon, Astra 3000, Astra 4000, Beretta 318, Bernardelli P8, Calico M950, Campo Giro, Coonan .357 Magnum, CZ 122 Sport, Gustloff pistol, HK P10, HK P9S, Hämmerli X-Essen, PAMAS G1, Pardini SP, pistol cartridge, Pistole vz. 24, Safari Arms Matchmaster, TOZ-35, Walther GSP, Walther TP, 

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Location: KML, Cluster Map, Maps,

Frameless

Type	Subtype	Date	Description	Notes	Source