I've used both the 180 gr sst's and the 165 gr interbonds in my 300 wsm.Two years ago I killed a deer and my buddy used my rifle to kill a deer a week later.Both deer where shot behind the shoulder and dropped without a twitch with the 180 gr sst.Both bullets exited leaving a fist size hole in the opposite shoulder.Last year I shot a doe with the 165 interbond.The doe was standing broadside at about 80 yards so I shot for her neck.At the shot she actually turned and ran toward me.I normally won't take a running shot but I knew she was hit so I shot her again.At the shot she turned and ran out of sight.That shot hit her infront of the shoulder and the bullet lodged ender the skin next to her tail.Surprisingly she ran about 75 yards after being hit through the windpipe and the entire length of her body.The bullet that was lodged under her tail was mushroomed perfect and retained most of it's weight.I would say the bullet performed exactly as advertised although I was surprised at how far she ran.