K80, Kolar, Perazzi, and Blaser would all be contenders for most durable. Of course, at a horrible cost of weight. They are overbuilt, extra have clay guns and are the antithesis of a lively wingshooting gun.
Both Beretta and Browning have made hybrids that can be used for both purposes, but less durability.
Better yet, a Purdey, Dickson, Woodward, or Boss would be the ultimate in lightweight game guns. Naturally, their useful lifespan is 1/20th the amount of shots before they are rubble.
you make a comment on not needing a poll just begs for one.
