I guess it's not a "problem", maybe a fascination but pump guns indeed, especially:

Ithaca model 37's, the early ones with the solid rib; Winchester pump .22's, as in model 1890's, 1906's, 62's and 61's and an early Win M12 20 gauge with a solid rib.

When I do a mental count, gee, maybe I do have a "problem".

Bill Jolliff