At the moment there are 3 cartridges that I know of with a somewhat similar form: 224 BOZ, 224 VOB and 225 JAWS. The BOZ was made from a 10mm Auto, necked down to hold a 223 projectile, the VOB was made of a Tokarev necked down to hold also a 223. The 225 JAWS is a new development from Jordanian Armaments and Weapons Systems, Amman, Jordan. JAWS is working together on this project with Wildey Arms, USA.
left to right the 224 BOZ, 224 VOB, 225 JAWS (click to see a bigger image)
For the 224 VOB Martin Tuma, a Swiss engineer developed a pistol, the MTE .224. Martin Tuma is also responsible for the development of some Sphinx pistols and the ASAI OnePro, in the nineties. The ASAI pistols were sold by Caliber Prague under the brandname MTE. This MTE pistol was therefore also available in 9mm Luger, 10mm auto and .45 ACP.
the MTE .224 pistol