Hoopy, those pic's look familiar. A friend of mine and myself were sighting in our guns a few years back, and we had probably shot 30-40 times into a pine tree about 20 inches in diameter. We were standing back at our "point of origin" talking about our groupings on the paper, when, the tree fell! It surprised us at first, but after closer inspection of the tree, we should have known. Hey, you know what? It happens too the best of us!