Yeah, she doesn't seem to have the most graceful lines.
However I am fascinated looking at their loads, and to see where they were thinking of going then. It's like I can see the problems in the article, and that it may have been complex and heavy, but seeing their philosophy is fascinating.
.400 Mars (Original Load) = 10mm A.K.A. the "Centimenter Cartridge?"
.450 Mars Long = Close to a .44 Magnum strength load.
.450 Mars Short = Close to a .45 ACP I am guessing.
.360 Mars = .357 Magnum or .357 Sig?
I am not saying equal, but if one could replicate the loads today and fire them from, say, a Thompson/Center Contender with equal barrel lengths, it might be neat to compare the Mars rounds listed to those more recent calibers. While the pistol may have had problems they had to work out, it and the ammo are kind of fascinating in that respect.
Also, the idea of a .450 Short being developed from the .450 Long is eerily similar to the development of the .40 Caliber from the 10mm. Maybe I'm reading too much into that but it is neat "what if" stuff.