The rim diameter of a 30 carbine case and a 22 hornet are about the same although the 22 hornet may be a bit thicker. I had an idea a few years ago to take the 30 carbine case and neck it down to 243 caliber and have a barrel made for the ruger 77/22 hornet rifle.
The 243 Arctic Fox would buck wind better, and with heavy 243 full metal jacketed bullets at a moderate speed of about 2,300-2,400 fps, this cartridge would be gentle on pelts and have great range. The heavier bullet would allow better penetration and retained energy out to about 300 yds even with heavy winds, but be less destructive up close on smaller animals.
As far as I know, I'm probably the only one who has thought of this purposeful future wildcat and when times becomes available, I'd like to give it a try. The factory mag may even be easily modified since the case would be cut to the same length as the .22 hornet, and loaded to the same COAL. The thickness of the 22 hornet rim as opposed to the 30 carbine case may require some modification of the extractor, but probably could be done.
The rifle would only need an 18 in. barrel and would have an overall weight of about 6lbs. even. With a straight tube 1-4 power scope, this would be the an excellent winter rifle that would probably be gentle on small game too because the 243 fmj would be much slower than most 223-243 cartridges.