.308 at 30 yards...I'm not surprised there isn't anything left to claim! You were breathing him in when you went to check because you vaporized him!!Sadly I've got nothing but blood all over and no body. Thinking he either fell into his hole or crawled into it so I know he's dead but won't count it as kill.
Trying my son's new toy (mine until he comes home from Japan ). An Aero Precision AR10 that shoots really good. I was 30 yards away so I probably hit the groundhog a little low.
Or the scope is way off because you're missing that front left ring screw.