RE: I stripped a hole installing scope base on a new Omega.
USPS tracking numbers are next to worthless. You would have had to opt for Delivery Confirmation to get a number that you could use to track the item online, but even then it is unreliable and only shows point of origin and final delivery at best. Last time I used it, my item was still showing as accepted here at my post office (origin) even on the day I got a replacement item back from the manufacturer.