Owned the 870, nice and simple gun. Had a Mossy, reliable enuf, sold it. The ONLY shotgun I will not sell is the Ithaca. VN-era theater gun. Of all manufacturers of pump shotguns, the Ithaca is tight, sturdy, reliable, bottom load and eject (good for southpaws) and it has what all other pump shotgun manufacturers seem to forget--the Auto Trigger.
The auto trigger allows you to chamber a round, press and hold down trigger to fire, keep holding trigger down, then rack another round and it goes once the round is in battery. It takes about 1 sec to empty 3 shells from the gun that way.
I believe the auto trigger was one of the reasons it was chosen over many scatterguns by VN-infantry.
"nothing worse or more frightening than the sound of a pump shotgun of any guage being racked in the dark."--> Heehee. I can tell you've never racked a CETME or HK G3/91. They'll think you shot them already!
Keith