A few years back, shot a young buck in the shoulder with a 6.5 mm 120 gr BT out of a 6.5x55 at very close range. Didn't aim for the shoulder, but that's where it went. The bullet came apart in the shoulder and the deer got up a few times, would take a few steps, then fall down. An overall bad experience, but probably my fault w/the shot placement. When hunting close-range wooded areas, I've switched to TTSX's which have always worked.