Such a scheme, from a practical matter, would cost far more to establish and maintain its infrastructure than what it would return in actual benefits. Canada went that route with its long-gun registry. RCMP finally admitted that it did not help solve a single crime and its great expense could not continue to be justified. Canada's lawmakers scrapped the registry shortly thereafter.
but here in Amerika, once the hacks have been hired and the politically connected have built an industry around gun insurance, it will not go away. Ever. Think - Mass Turnpike.