woods/trail/GP
My SA Rugers all serve as woods/trail/utility guns. Tough as nails, common calibers (.357, .22 mag, .22 lr) and portable. In a pinch, they serve in the SD role, as you have it with you when one leaves the boonies and gets fuel, groceries, whatever.
The 4-5/8 .357 is the full power number and is on hand when I feel I need such. I load it to 3/4 throttle with 158 LSWC and it suffices for plinking, pests, and again SD if thought prudent. It always rides in a WWII "aviator" style holster and gets picked as often as not 'cause the rig allows easy carry aboard ATV, mountain bike, foul weather, etc.
The 5.5 inch .22 mag is not as powerful, but I shoot it better due to the longer sight radius ( darn 50+ eyes!) Grim death on small pests and tin cans. It hits notably harder than a .22 lr from a handgun. It rides in a crossdraw flap holster and is not as convenient as the aviator rig, but the matching ctg belt holds a bunch of light easy to carry ammo. Not a SD round, but beats ones hands for most of us.
The tiny Bearcat is toted when I don't really want/need a handgun but take one anyway. It is almost always carried in a deep pants pocket, often when I'm bow hunting (not always legit, but comforting) sometimes when hunting with a rifle. If I still lived in trout country it would be along on trips to the stream.. Fifty-100 rounds take up little space in a pack or pocket. I've got two holsters, but both seem to add size and bulk to what is an otherwise tidy package. It could serve as SD but not recommended. Has killed a bunch of time and tin cans at camp and the truck.