ctj70
Junior Member
I’v been metal detecting relics for about 9 months now, so still learning. I have a Garrett AT Pro. Mostly I do not dig iron targets and the ones I have, have been farm stuff or unrecognizable. Recently I have a place that could have civil war cannon shots. What range of VDI would cannon balls or fragments ring up as? As a reference a Minnie ball usually rings up around 69 on my machine.