Well she likes the .22 rimfire for her carry evidently.... the rugged mk 1 series was used against the bad guys and her snobby in the video is a SW 317 eight shot........ .22 !
One article I read long ago by a gun writer said that the .22LR rimfire cartridge is deadly out of all proportion to its size and I agree, especially if you keep it loaded with the very best from CCI. I tried a Beretta Bobcat .22 semi-auto on a heavy steel cookpot with a very thick bottom and at ten feet a CCI mini-mag went through the bottom and left a hole you could have dropped a .45 round through, in fact I could poke the end of my little finger through it and I struggle to put on the largest work gloves I can find. The expanded hollow point bullet went on into the soil beneath the pot. That was done with a shot from a barrel two inches long. Trying it on treated pine two by fours the bullet would go through and keep right on flying.