I'm sure liking the idea of a thick walled, "everlasting" honker of a case, with an internal "shelf" whereupon a proper flat based bullet can settle in well aligned repose. Can't BELIEVE that DD is talking heeled bullets,...I see them as case killers, myself.
GTC
I was advocating that around 20 pages back. I don't know about heeled bullets being a case killer though, as long as chamber dimensions and case dimensions are such that no sizing is required and loads are kept at a sane level.