In late September, one of my daughters hit a young buck with her crossbow. The Wisconsin 5-pointer, which led us on a long and fruitless blood trail, looked pretty healthy when I jumped him 600 yards from the impact site. He looked even healthier the following week when he showed up on one of my trail cameras. It was a tough lesson for a young hunter, but drove home a point that we should all obsess over—shot angles. In the bowhunting world, we...