What about the Kel-Tec PMR 30... 30 rounds of 22 Mag in a pistol
Jamming was a problem with the early pmr's. From what i have seen they are reliable as long as you follow kel-tecs instructions on loading the magazine.
But you are correct as a carry gun I would look for something else, but as a gun to carry in the woods or out on the property it would be really potent against wild dogs and coyotes
+1 for the PMR-30. This is one of the most pleasurable guns to shoot I've found in 45 years of shooting handguns. New .22 WMR loads from Sierra (Gold Dot Short Barrel Hollow Point) and Hornady (Critical Defense) make the .22 WMR a viable handgun cartridge for a wide variety of uses. I'd still prefer something bigger for personal defense, but I wouldn't hesitate to use it for that purpose if it was all I had available to me.