I know it can be done because Bar-Sto makes barrels for it. I would talk to a knowledgeable 1911 guy like Jason Burton or John Jardine before starting a project like that.

But the real question is why?

A 38 Super loaded with Corbon DPX is a great defensive load.

Springfield, Wilson and a few other manufactuerers have figured out how to make reliable 9mm 1911's and that opens to door to a very soft shooting platform to launch 127gr +P Gold-Dots.