I have two. A .450 Marlin guide gun with a 1-4x Leupold on it from a low bench position. I crept the stock a little and thought I went blind in my left eye until I realized it was my newly relocated nose in the way.

An older SxS 12 ga. with narrow steel butt that doubled with buckshot.

A close third was my 1886 extra-lightweight with some Elmer Keith approved 425 gr. loads at around 1850 or so. Learned not to wrap my thumb over the stock with that one.