GM 06,
Interestinng you mentioned that about auto loaders vs pump. I've naturally continued to reserach things over the weekend and feel a pump is the way to go.
I've kinda narrowed things down to the Mossburg 590 and the Remington 870.
Seem to be the most popular with many after market parts if I want to change things up a bit.
Always anticipate suggestions.
Jerry
Wise to go with a pump. I have never trusted a self loader for social purposes FWIW.
Mossy has an aluminum receiver and the placement of the safety catch is a little awkward for some; try it in person yourself to see what you think. Mossy you can't extend the mag tube, when you get it. But extended tubes are available as an easy to get factory option on the gun when you buy it. Just make sure that what you want is what you're getting (i.e. don't get a 5 banger and then say "crud I really shoulda' got a 7 banger").
Remington has a steel receiver and a better ergonomic placement to the safety. Mag tube is easy to extend or keep short if you're in a restrictive jurisdiction. You can have it mild or wild IOW. The Remington can be a pain though if you buy a short tubed sporting model and decide to extend it - for a while the tubes had dimples that had to be removed. Not sure if they're doing it now.
Either works fine, neither is perfect. As far as reliability goes, both are good IME, but the Mossy tends to break safeties (fragile safety button) and the Remington once in a blue moon will break an ejector (serious PITA to put in a new one).
If you're really in the "up to $600" budget range, consider an Ithaca 37 defense model. If the new ones are as good as the old ones they're champs but about 2x the price of the competition. Not claiming the new ones are as good though - mine was made well over 30 years ago and has been a keeper, even when I sold nearly all my other guns. Not as many accessories on the '37 either so if you want to go tacticool, then by all means go Mossy or Remington instead. The Ithaca 37 defense with wood stock is very old school (which is one thing I really like about it).
Just my two cents. I'm rethinking whether to get another 870 or break down and spend the extra for a spare Ithaca (strong believer in "two is one, one is none" philosophy of guns). The Ithaca was based on a design by John Browning and Pederson that Remington originally had the patents on, but was too expensive so they dropped it during the depression. The "37" comes from the year 1937, when the patents expired and the Ithaca Gun Company of Ithaca New York decided to get into the shotgun market.
Best,
Grumpy
PS Sorry for the boring history. Any of the 3 are fine, it comes down to what fits YOU best. Handle 'em each and pick the one you like best. Just realize that if you go Ithaca you won't be doing tacticool customization and your friends won't know what it is.
PPS Should have read all the way to the end of the thread, darnit. See you got an 870. You'll be fine. Its a good gun.