the stoeger P350 is not a very good gun. I had one a few years back, pretty inconsistent on cycling any shells regardless of size. However stoeger is part of the benelli family so maybe they have improved it.
With that said i haven't seen many good things about the new 870s, the old 870s built like a tank, but haven't been impressed with Remington products in the last few years.
if i was in this position i would get the 870 or like kevin mentioned the Nova/Super Nova whatever it is now, very similar to the p350 but much more reliable.
or hell, the super black eagle 2 is always an option too, never had a lick of trouble out of mine
