My brother, Dakota, got his first deer of the year tonight. At first we thought he hit the shoulder and didn't get good penetration, but on the video you can see the arrow go in almost to the fletchings then break and start to fall back out. The 160gr Stos on a cedar arrow made it all the way through and we found her about 100 yards away. He's shooting a Thunder Stick Mag 45@28.
Here's a picture
And here's the video