I was surprised to find an exit wound on this doe and no arrow in the body, I think it actually worked its way thru the other side from her running and squirming!
So you think it worked its way through....other than backed out?
I highly doubt that's the case.....but if that's what you believe......
Do you realize how fast it would back out? Think about how long your arrow is....and how "deep" a doe's body is. It's not surprising you wouldn't have blood on your fletchings if they never entered her body.
I'm just giving you my impression of whats been described. Punching through and backing out is MUCH more plausible to me than partial penetration, initially, and then working through.