Yesterday evening I shot at a roe Buck: good pretty steady aim from a semi prone supported position, range about 110 metres. It made a great leap, then instead of falling down, dropped its head a bit and ran 10-15 metres into a very, very thick plantation getting over a fence in the process. I searched and searched including with a little blood torch. I could find no blood or hair. But there was a thickish drizzle and everything was v wet. Miserable. I returned first thing with a dog, nit remained but a good nose. We could find nothing but it was v thick and almost impossible. This afternoon, still miserable, I checked zero...hoping it might have been out. It wasn't, though perhaps a 3/4 inch high. Two 3 round groups, both MPI less than an inch from the bull and grouping for each group was about 1 and a 1/4 inches. I zeroed at about 100 metres paced out. I have heard of this happening to others who must feel as dreadful as I do. I must have hit the beast and have been told that a low heart shot could do it. Any advice as I never want this to ever happen again?