You generally don't buy doubles whether SXS or O/U for investment purposes. You usually buy doubles because of WANT and for no other reason. Granted, if the gun in question is grossly underpriced and is in good condition, get it because you want it. I see no reason why that particular O/U shouldn't work on anything anywhere on this planet. There are several 470 users that go Moose, Kodiak Bear and Caribou hunting with theirs.