Deer Man, tried 100 grain 6.5 BTs on roe. The first two were neck shots and ok. The next outing I encountered two does and heart shots. The first one fell immediately, but the second stumbled and went down, but was moving for a couple of minutes until still. It was dead when I got up to it but on skinning it, I found the whole of the impact side was bruised and the skin lifted. The bullet had blown and although some had hit the heart, I found fragments in the shoulder and all along the flank.
I used the rest of my loaded rounds in competition and gave the remainder back to the gun shop.