RE: What would you do?
I'd wait for the deer to seperate to ensure that only one deer was hit and I'd wait as long as I could to see if they approached any closer. The terrain seems to not be the best for attempting to move closer, and the .30-30 loaded with a 150-165 grain bullet will kill at the range given, but why take the chance of a marginal hit? Patience is a virtue!
GH