I killed a elk and a deer with 150gr. On Elk 150 is the only way to go on deer the preformance didn't overly impress me. Just a small entrance and exit very little internal damage and the deer ran 120yd with a chunk missing out of the top of theheart and a hole through the bottom of the lung.I downgraded to 130gr. Right now im shooting my handloads with 130gr Nosler Ballistic Tips, I have yet to fire them on game.