Yup. Its white 80 from the Charlotte pipe foundry. I had never seen it before either, its usually black.
Taters, apples, drink cans, water, Golf balls (with a plug behind them like you are talking about) will go through a sheet of 3/4 plywood. Scott got me to thinking about shooting skeet with one, I am thinking a cut open drink can filled with gravel to bust clay targets.
