These little wheelguns pack more punch than .22 LR pistols. But is it enough to get the job done? In a previous article we took a closer look at using .22 LR pistols for self defense. The conversation was inspired by the release of new rimfire models that look and carry like center-fire models. However, the second most popular rimfire rifle cartridge in the United States, the .22 WMR, has also been pressed into service as a low-recoil defensive option. More commonly known as the .22 Magnum, or just .22 Mag., this rimfire cartridge is carried more often than some...