Dugaboy 1,
You are quite right about a lot of doubles from India ending up in Australia, though I don't really think they were outlawed in India. There are still quite a few doubles in the sub-continent, in fact I recently picked up a 470 Westley Richards for a real bargain from there.
As far as I can recall, Corbett took his favourite rifles to Kenya with him, he probably sold the others to Manton's in Calcutta.
Mpofu.