I've got a F75 on the way, and there is a field I hunt on as well as permission properties. I was wondering what is the deepest anyone has found bullets and other relics from the civil war? They all say that the field is hunted out but I believe there are still items in that field, just down deeper than other detectors could reach. I've hunted that field with a pioneer 505 and found bullets near the road under a power line that others never hunted, in the field I picked up signals in all metal mode but they were just iron. How deep can I expect to hit signals with the F75?