That was my first impression as well, Tony. I've been trying to locate this training field for about four years, but haven't had much luck finding anything diagnostic. Tradition holds that the training field was near the church and there was a tavern close by. I found a scattering of broken pottery, nails, pipe stems, and some bricks nearby, but nothing to really indicate a structure and certainly nothing to indicate any militia mustered there. But it is the flattest land in the vicinity. If this is in fact a gun part, I'll be stoked.