A cousin of mine used 170s in his '06, for one deer. He lost a LOT of meat, or so he said. The bullet came apart pretty abruptly, and he had a tracking job. He was probably running it too fast, but that's his story. I'm just relating it......
At least he found the deer, but he wasn't happy at all with the results. He went back to his "normal" .30/06 loads afterwards. He also experimented with 168 match bullets, and had similar results.
