Free: Contests & Raffles.
i would say 30 is the tops i think around 20-25 is getting pretty old, i also think it depends on the area they live in and food they eat as well.
I shot one that was 21.5 yrs old. He was pretty worn down and his teeth were worn pretty bad. He also had a broken front leg and was missing half his front paw. I don't think he would have made it much longer.
Actually Rasbo, I started calling myelf lucky after finding him. He ended up breaking the state record that had stood for 32 years. I had seen him a few times before but never during hunting season. He had been around the block, scarred up and he had been "tripodding" for so long his spine was curved. The leg had atrophied up against his chest and hadn't been used in some time, that front quarter weighed about 50# less than the other side.