My truck gun's been through it all ranch roads, mud and a few unplanned drops, so I gotta ask, which scopes have put up with constant shaking and still stayed zeroed for you?
There is a reason Soldiers use the AccuPoint; its rugged. Given enough time Soldiers can break an anvil. I know because I was one. If your truck gun is mainly doing varmint/herd protection work inside 200 yards, consider a good set of fiber optic open sights for quick acquisition and fast follow-up shots. We used iron sights to 300 yards for years before they issued the Trijicons.