I took a 5x5 last fall using a 348 gr Aerotip with 110gr of 777. I hit him a bit high, but he side stepped twice and tipped like a ton of bricks. Either he slightly turned towards me when I shot, or he was on a very slight angle towards me, either way, the bullet entered on a slight angle and lodged against the hide on the opposite side and it was a near perfect mushroom, nearly twice it's original diameter.

Not sure if posting this pic will work, but if it does, this is what he looked like when I walked up to him :-)