I bought an Ithaca M37 for a good price on GB a few years ago. It's in great shape but has a Polychoke so the collectors didn't want it. I have an 870 with all three plain barrels I'm fond of too. Ithaca 37s, Winchester M12s, and Browning Sweet 18s are sized for the gauge. Early model 12s have a 2 9/16 inch chamber.

The Karma bus always has an empty seat when it comes around.- High Brass

There's battle lines being drawn
Nobody's right if everybody's wrong