People who hunt with .44s don't generally want 3" barrels. There actually is a very real practical application for a weapon like that, which is as a sidearm when you stand a chance of being attacked by an insanely large animal. .410 in the first cylinder for dispatching snakes, then .44s behind it for stopping any rhinoceroses that might be out to get you. However, I seriously doubt that any of the people who buy that weapon actually need it for that purpose. Like I said, I suspect it's mostly just a novelty.
I make that point because it's exactly the sort of thing that reinforces the stereotype about Americans and their guns.