There are many references to "not carrying" and "not hauling" a .50 BMG around on a hunt.
That's the whole point!
You sit on top of a ridge, wait for the animal, and pick it off at 1,500 yards.
I have no interest is doing so, but the idea is to get a good view, and wait for the animals to come within striking distance. (Same concept as all you stand/blind hunters, actually.)
"Such is the strange way that man works -- first he virtually destroys a species and then does everything in his power to restore it."