I love 'em but after a few miles they feel like you are carrying a steel fence post. Biggest critter I ever killed was a feral boar with a Hiwall .45-70. Then I had to pack his quarters (two loads) out about 4 miles down the canyon of the Little Sur River south of Monterey CA. But I was 18 then--60 years ago--and used to ranch work....
Now I'd have a hard time with just the rifle!
But when you throw down with that Hiwall 30" #3 barrel, it is STEADY. My Japanese .243 would do the same job, though, and I could carry it at least part way!