How about a "scientific" test?
Duplicate the Rem barrel, and then machine another barrel of the same length with the same contour (ie dia. at muzzle and dia at receiver end) then do a stress / bend test on each under closely controlled and supervised conditions.
The triangular barrel will show superiority if I am correct. If not, I will gladly eat my words.

Wheen the chips are down, the buffalo is empty.