Get online and look at some old war maps. I googled my town and found there was a small battle nearby and just went out into the woods and started. Ive found a bunch of .50 cals and shrapnel so far. Nothing AWESOME but still really cool to find and think 70 years ago what happened in those woods. Just get out there and start. What detector do you have? A big problem out here is iron shrapnel. Some of the less expensive ones cant distinguish junk iron to quality iron items. Either way, good luck!