My father passed away a while ago, and I was going through some boxes. My great-grandfather’s farm in Chambersburg Pa was where Lee’s headquarters was in Shetter’s AKA Messersmiths Woods. This minie ball was there and picked up on farm…could it be from Rebels? Only issue is it’s filled in at bottom with little metal out… thought maybe dad used it as a fishing sinker. Anyone know if it is minie ball?