I have read a number of articles that make statements regarding doubles rifle production. One says "all the double rifles in the world probably do not equal a single year's production of Remington 700's." Others describe annual production by various companies as being in the dozens. I understand that interest in these guns has picked up and companies are starting to produce them again, but how many functional double rifles do you think are out there? (I would propose limiting consideration to big-bores, and only those that are still safe to use.) How many might be black powder vs. nitro expresses?