Never been scoped and I can't understand how that could ever happen unless you were firing left handed while hanging upside down from a deerstand.

However, 3" magnum OO in an 870 did make me a bit uncomfortable. We'd set up tactical courses at our range and sometimes run shotgun courses. Had a handfull of said loads and thought they might help knock down steel plates. Just about tore my shoulder off after 3 rounds. It took everything I had in me to finish that run. Whoo!