I'm not so sure .22 or any of the mouse calibers technically qualify. Those fall more under the umbrella of trail or camp pistol. A PPP should be reasonably powerful enough for defensive use against any two or four legged critters that may be encountered.
I totally agree that your definition is correct. My drift was just that.
.357 magnum power & up, in a packable handgun should be the theme. Seems I recall 50 ounces as the ceiling.
S&W, BTW blew this out of the water 2 more times after the Mountain Gun. My hat is off to their engineering dept.
