I used the 180 grain ballistic tip in the 300 winmag for a while. Very accurate. Way too fragile for my liking. Tissue damage was extensive. One 5x5 whitetail was coming in at a dead run straight at me, and I hit it twice in the sternum. Neither bullet penetrated into the chest cavity. They were in pieces on the bone. The Speer hotcores, grand slams, partition, and the hornady cup and core are a much better option.