Can you give us precise measurements? Length, diameter and weight would be a great help in properly IDing your find. Also, does the small hole go all the way through the item?
can't get too precise. guess I need to buy a scale and some calipers. It's 11/16" wide and 1/2" tall. The hole doesn't go all the way through. It seems like it has maybe a "jacket". the inside deffinately lead. My friend suggested a musket plug to keep the rain out.