You didn't mention how far it fell, so I figured it fell off a table or chair (2-4'). But no, I wouldn't THINK that a 5 inch drop would damage it, but if it landed just so and took the full force of the scope and rifle, who know. Like I said, precision instrument. Check your mounts first before you ****can the scope. And if you do find that the scope is the likely culprit (if you have a spare scope lying around you could switch to see if the same thing happens with a different scope), I'd send it to Leupold first. They might warantee it.

Mike