Alot of people like them, personally I dont! They do shoot good, but I work in a taxidermy shop and have seen several animals come in through the years shot with them, where the bullets failed to expand properly. Last year my boss shot a spike elk with a 375 H&H, using 300gr TSX. It took 4 shots to kill the elk, we retrieved 2 of the bullets both had very little expansion, one had bent looked like it had enter sideways. Also a good friend of mine used them on a moose two years ago with the same kind of results. This is just a couple of examples I have personally seen, I can post pictures of the bullets, I believe my boss kept them. I have heard stories with people having great sucsess with them, even know people that will only use them, I wont!