I tried the 115 bt's about 10 years ago. They were not tough at all - didn't like bone. I shot the rest of them into song dogs. They make a real good mess out of em. The Hornady 120 was the toughest I've used but starts dropping like a rock past about 250. I settled on the Sierra 120 because it really shoots well and falls right between the Nosler and Hornady for tuff. If I wasn't going to shoot a premium bullet for Elk I'd shoot the Hornady. I also heard a few good things about the 120 partition but never could get them to shoot worth a squat. Whatever you choose, just shoot strait and you'll do fine.