WAB
AH ambassador
The .44 magnum is the most commonly available and portable handgun of its power level. People carrying a .44 are folk that are looking to have the gun on their person when they need it mostly having their hands full with some other task. The 12 gauge or the rifle will be leaned up against a tree and possibly a world away. The .270 is a compromise choice for heavier game just like the .243 and I put it a worse choice than the .44 magnum because it loses in bore diameter and portability. So I have a compromise rifle leaning on the tree which if I get to will not be as good as something else better that I could have chosen to lean on the tree.
Clarification: A .270 Winchester is not a magnum cartridge. It can be used for metallic silhouettes. You may be crossing wires with the more rare .270 Weatherby Magnum.
Can't carry a rifle hiking in a lot of places without a hunting license during hunting season.
Handgun can fall under concealed license and not be considered a hunting implement.
I still can't say I'd ever pick a .270 where bears were a concern. Say whatever you like about bullet technology, but I can have the handgun on me and a bigger more powerful rifle is just better when the chips are down. I don't want to have to explain myself to the bear so he knows what he's getting shot with. An angry bear is a poor student for a lecture.
When I first moved to Alaska I carried a 12 ga when fishing. I kept setting it down as it was cumbersome. Then one day a bear joined me on a stream. I think the bear was closer than the shotgun. After that I carried a .44 in a chest holster.