Back in 1940 L. Kilbourn developed the 224 Kay-Chuk cartridge from the 22 Hornet. he used the S&W Model 17 revolver chambered for the 22 long rifle. The chambers were reamed-out to chamber his 224 cartridge, which had a sharp shoulder that did not cause extraction problems, like Colt single action revolvers with Christy Gun Works 22 Hornet cylinders.
This 224 Kay-Chuk really became popular during the 1950's and considered to be one of the most effective small game cartridges and later on, still was considered superior to the S&W 22 Jet.
The 224 Kay-Chuk fired a 37 gr Sisk bullet at 1903 fps and a 40 gr Sierra at 1650 fps
photo shows the 22 Hornet and 224 Kay-Chuk cartridges![]()