Range toy. Shooting pigeons inside buildings.
I'd rather have a .357 or .44 mag with the first couple of rounds snakeshot and the rest full-power loads in the backpacking scenario you give; I just can't see giving a .45C cartridge all that freebore down the cylinder and still have it be terribly accurate.
I've always thought they were a fairly useless pistol by a company with a mediocre track record backed up by a good marketing campaign.
No way I'd buy it and expect to stake my life on it.